Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 447334: Solve (x+2)(2x-7)=-15
Click here to see answer by algebrahouse.com(1659)

Question 447227: Well, I have a math problem that say," Yoy have 180 feet of fence to make a rectangular pen. One side of the pen will be against a 200 foot wall, so it requires no fence. What are the dimensions of the rectangle with the maximum area?" and i would like for you to help me on it.
Click here to see answer by ankor@dixie-net.com(22740)

Question 447354: Find the equation of a quadratic function with x-intercepts(2,0) and (-7,0) and y-intercept (0,5)
Click here to see answer by stanbon(75887)

Question 447343: In a quadratic equation, once you have something that looks like this-
-9(plus/minus)(square root) 121. Do you (plus minus) the square root of the number or the actual number?
Click here to see answer by stanbon(75887)

Question 447439: Can this be factored if so how do I factor it -y4-9y3+p2?
Click here to see answer by stanbon(75887)

Question 447448: Determine the type of number that the solutions of:
x^2+8x-9=0 will be
Click here to see answer by stanbon(75887)

Question 447375: 3m2 + 8m + 2=0
Click here to see answer by www.achukanjosh@gmail.com(3)

Question 447473: Please explain me to solve the equations of the type x^2-2*square root of 5*x+3 without using quadratic formula.
Click here to see answer by ewatrrr(24785)

Question 447407: A gound base missile is launched from the origin (0,0), it reaches a maximum height of 10km and lands 200km away at the point (200,0) determine the quadratic equation. The missiles flight path is a parabola.
Click here to see answer by ankor@dixie-net.com(22740)

Question 447715: The equation x^2 + x - 4 = (x + a) (x+ b) is true. what is ab
Click here to see answer by stanbon(75887)

Question 447713: The equation x>2 + x - 4 = (x + a) (x+ b) is true. what is ab
Click here to see answer by richard1234(7193)

Question 447758: what is A sub N = 2n squared -1? I'm looking for the "10th term"
Click here to see answer by richard1234(7193)

Question 447847: Find two consecutive positive integers such that the sum of their squares is 41.
Click here to see answer by algebrahouse.com(1659)

Question 447961: how do i solve a quadratic equation that looks like this....y(y-3)=0
Click here to see answer by Alan3354(69443)

Question 447882: solve by factoring 8s-11=(s-2)(s-6)
Click here to see answer by The One(11)

Question 447982: The length of a rectangle is 8 cm less than twice the width. The area of the rectangle is 90 cm2. Find the length and width of the rectangle.
length______cm
width_______cm
Click here to see answer by jorel1380(3719)

Question 448081: Use the general formula (A= l x W) to write the area A of the enclosure as a function of w. (that is, only the variable w should appear in the function). Write the function in simplest form. What type of function is this?
a= area
l= length
w= width
Click here to see answer by stanbon(75887)

Question 448513: what is the vertex form for the equation y=x^2-2x-8
Click here to see answer by ewatrrr(24785)

Question 448483: Find the x-intercepts of the graph and compare them with the solutions of the corresponding quadratic equation y=x^2-9x+18.

Click here to see answer by ewatrrr(24785)

Question 448426: This problem is a porabola equation. i really need help.
The question is, : (A.) tell whether the graph opens up or down. (b) find the coordinatnts of the vertex. (c) Write an eqquation of the axis of symmetry.(D) Find the roots of the equation. and graph the function. The equation is: 2x^2-4x-16=y
Click here to see answer by ewatrrr(24785)

Question 447781: how would i find the maximun height of an arch with an equation such as h=-0.00635x^2+4.0005x-0.07875
Click here to see answer by ewatrrr(24785)

Question 448196: Which is not a factor of 12x3 � 82x2 � 14x?
(3x � 2)
(6x + 1)
(x � 7)
2x

Click here to see answer by ewatrrr(24785)

Question 448597: I dont Understand How to do this equation:
3n^2=10n
Click here to see answer by jorel1380(3719)

Question 448577: Write a quadratic equation in standard form that has the solutions 1 and -8
Click here to see answer by ewatrrr(24785)

Question 448580: If the discriminant of a quadratic is 7 describe how many and what type of solutions the equation has
Click here to see answer by Alan3354(69443)

Question 448665: 1. A rectangular table is three times as long as its width. If the area is 147ft^2, find the length and width of the table:

2. The product of the page numbers on two facing pages of a book is 132, find the page numbers.

Click here to see answer by emargo19(101)

Question 448678: The length of the table top is 5m greater than the width. The area is 66m2. Find the Dimensions of the table top
Click here to see answer by chriswen(106)

Question 448887: The path traveled by a ball hit into the air can be modeled with the quadratic function, y = -0.042x^+5x, where x is the distance in yards from the point it was hit and y is the height the ball reached in feet. Assuming that the ground is level.
a) Find the maximum height reached by the ball.
b) How far from where it was hit does the ball hit the ground?
Please help me with this problem as I am getting a negative figure for the height. There is something I am not doing correct.
Thank you. I look forward for your assistance with this problem.
Click here to see answer by htmentor(1343)

Question 448999: Given 3 points
f(3)= -11
f(1)= -3
f(-2)= -21
FIND THE QUADRATIC FUNCTION(AX^2*BX+C=0)
Click here to see answer by ewatrrr(24785)

Question 449096: I have a word problem that I cannot get into the right form. If I can get it into the right form I can solve the problem. The problem is "Lisa participated in a triathlon in which she swam 3 miles, ran 5 miles, and then bicycles 10 miles. Lisa ran twice as fast as she swam, and she cycled three times as fast as she swam. If her total time for the triathlon was 1 hour and 46 minutes, then how fast did she swim?"
Can you help me to understand how to right the problem into an equation to find the answer?
Click here to see answer by rwm(914)

Question 449127: 3x^2+11x+10=0
please this one fast
Click here to see answer by Alan3354(69443)

Question 449150: How do you find the x-intercepts and the vertex of the graph of the function? Could you also graph the vertex if possible, thank you!
y=x(x+2)
Click here to see answer by ewatrrr(24785)

Question 449355: Can you help me use the zero property or factoring to find the solution of (x+2)(2x+7)=-15 ?
Click here to see answer by MathLover1(20849)

Question 449352: i need help on getting the answer for this problem "5x^2+5=-13x", help?
Click here to see answer by jim_thompson5910(35256)

Question 449352: i need help on getting the answer for this problem "5x^2+5=-13x", help?
Click here to see answer by MathLover1(20849)

Question 449377: X^2=-14x-40 Help pleasee what do i do when the x squared is in the other side?????ASAAPP!
Click here to see answer by Alan3354(69443)

Question 449377: X^2=-14x-40 Help pleasee what do i do when the x squared is in the other side?????ASAAPP!
Click here to see answer by Math_Teacher_37(4)

Question 449383: Hey, Im in much need of help to figure out how to factor/solve qudaratic equations that are not in X^2+bx+c=0 form. for example,how do you factor 4x^2=4x+5?
Click here to see answer by MathLover1(20849)

Question 449460: Solve the following equation by using the quadratic formula. (Enter solutions from smallest to largest. If there is one solution with a multiplicity of two, enter it in both answer boxes.)
2x^2=-2x+7
x = ?
x = ?
Please show me the steps to get the steps.
Click here to see answer by jorel1380(3719)

Question 449454: Solve the following equation by using the quadratic formula. (Enter solutions from smallest to largest. If there is one solution with a multiplicity of two, enter it in both answer boxes.)
(x-2)(x+1)=8
x = ?
x = ?
Please show me the steps to get the steps.
Click here to see answer by jorel1380(3719)

Question 449466: Solve the following equation by first multiplying both sides by the LCD and then applying the quadratic formula to the result. (Enter solutions from smallest to largest.)
1/2x^2-1/2x-15/32=0
x = ?
x = ?
Please show me the steps to get the steps.
Click here to see answer by mananth(16946)

Question 449465: Solve the equation 25x2 - 64 = 0 using the quadratic formula. (Notice b = 0. Enter solutions from smallest to largest.)
x = ?
x = ?
Please show me the steps to get the steps.
Click here to see answer by mananth(16946)

Question 449457: Solve the following equation by using the quadratic formula. (Enter solutions from smallest to largest. If there is one solution with a multiplicity of two, enter it in both answer boxes.)
(2x-1)(x+2)=9
x = ?
x = ?
Please show me the steps to get the steps.
Click here to see answer by mananth(16946)

Question 449464: To apply the quadratic formula to the equation 4x2 - 7x = 0, you have to notice that c = 0. Solve the equation using the quadratic formula. (Enter solutions from smallest to largest.)
x = ?
x = ?
Please show me the steps to get the steps.
Click here to see answer by jorel1380(3719)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240