Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 302128: This is Imaginary Solutions:
(y-2/3)^2=4/9
Click here to see answer by richwmiller(17219)

Question 302216: y=-x^2+3
write the equation of the axis of symmetry for the function and find whether the vertex is a maximum or a minimum. Then use a table of values to graph the function and circle the coordinates of the vertex on the table.
Click here to see answer by stanbon(75887)

Question 302233: Iam having a horrible time w/quadratic equations especially finding decimals here is the first one: duringthe first part of a trip a canoeist travels 91 mi. at a certain speed. The canoeist travels 15 mi on the second part of the trip at a speed 5 mph slower. The total time for the trip is 4 hours. What was the speed on each part of the trip. The hardest time I am having is to use the quadratic formula and round to the nearest hundreth PLEASE help me understand this. How do you divide quadratic equations to get decimals??
Click here to see answer by stanbon(75887)

Question 302408: SQRT(x)-2x-13=0 move the constant term to the right side of the equation.
Click here to see answer by Alan3354(69443)

Question 302415: SQRT(x)-2x-13=0 set the left side of the equation equal to the positive square root of the number on the right side and solve for x.
Click here to see answer by Alan3354(69443)

Question 302456: Is it possible for 2 different quadratic functions to have the same root?
Click here to see answer by richwmiller(17219)

Question 302413: SQRT(x)-2x-13=0 take the square root of both sides.
Click here to see answer by Alan3354(69443)

Question 302411: SQRT(x)-2x-13=0 Square the coefficiet of the original x term and add it to both sides of the equation.
Click here to see answer by Alan3354(69443)

Question 302484: How do I find the diciminamt of the quadratic equation 2x2-x+1-0

Click here to see answer by richwmiller(17219)

Question 302493: What is the vertex of y=-2x^2-4x+6
Click here to see answer by richwmiller(17219)

Question 302477: a rectangular walkway is 18 feet longer than it is wide. If the area of the walkway is 88 square feet, find the length and the width. (Points :5)

Click here to see answer by mananth(16946)

Question 302579: Factor:
4x(x-1)=15
So far I have 4x^2-4x-15=0
But when it comes to factoring i"m stuck. Is this correct so far?
Click here to see answer by richwmiller(17219)

Question 302577: Principle of Zero:
5x^2+2x=0
Click here to see answer by richwmiller(17219)

Question 302570: Will someone please help me with Evaluate The Exponential Equation For 3 Positive, 3 Neg. Values Of X &x=0 Y=3^-x" Please Show Work?
Click here to see answer by richwmiller(17219)

Question 302481: x2(squared)+5x-24 in vertex form?
Click here to see answer by jim_thompson5910(35256)

Question 302654: find the coordinates of the vertex for the parabola defined by the given quadratic function
f(x)=3x2+18x+8
the vertex is?
(need an ordered pair)
Click here to see answer by Fombitz(32388)

Question 302750: Explain how the solutions to a quadratic equation could be used to find the line of symmetry of the graph of equation.

Click here to see answer by Alan3354(69443)

Question 302782: How would you set up the word problem:
"The larger of two positive numbers if 4 greater than the smaller. Find the two numbers if their product is 77."
Click here to see answer by pinkpeach(1)

Question 302740: Enter the quadratic equation in standard form 2x^2 - 3 = -6x - 2
Click here to see answer by checkley77(12844)

Question 303031: x^2+6xy+9y^2
Click here to see answer by helpnalgebra(91)

Question 303033: 6x^2+4xy-2x
Click here to see answer by helpnalgebra(91)

Question 303014: x^2+10x+10=0
I know the answer is neg 5 plus or minus the square root of 15 but why?
Click here to see answer by TX911(36)

Question 303054: all it says is Solve.
3x2+28x+9=0

**3x2 means 3xsquared i dont' know how to do the square on keyboard
Click here to see answer by Edwin McCravy(20054)

Question 303082: Find a quadratic equation with the following roots: 4 and -5
Click here to see answer by nerdybill(7384)

Question 303114: Factor
Don't understand what to do
5x^2+2x=0
Click here to see answer by stanbon(75887)

Question 303150: what is the axis of symetry if the equation is two x squared plus twelve x plus nine?
Click here to see answer by Fombitz(32388)

Question 303150: what is the axis of symetry if the equation is two x squared plus twelve x plus nine?
Click here to see answer by stanbon(75887)

Question 303189: A garden is currently 4 m wide and 7 m long. If the area of the garden is doubled by increasing the width and length by the same number of meters, find the new dimensions of the garden.
Click here to see answer by scott8148(6628)

Question 303194: x4+1/x4=?
if
x=1/(8+sqrt(11))
Click here to see answer by nyc_function(2741)

Question 303155: A typical car's stopping distance on dry pavement "d" in feet can be approximated by the function

d= 0.034s2(squared) + 0.56s - 17.11. Where "s" is the speed in miles per hour, of the car before braking.

A. How fast is the car going if it requires 100 feet for the car to stop after the brakes are applied?

Click here to see answer by nerdybill(7384)

Question 303282: How do you determine the solutions of a quadratic equation? If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
Click here to see answer by Fombitz(32388)

Question 303287: To get the maximum space for 10 ft of fence, what dimensions should be used- How would this be identified using a quadratic equation?
Click here to see answer by rfer(16322)

Question 303332: d=40t-5t^2
Click here to see answer by Alan3354(69443)

Question 303397: Please solve the quadratic equation:
x^2+12x+4=0

Click here to see answer by Edwin McCravy(20054)

Question 303705: What quadratic equation would have solutions x= 2/3 and x=1/5
Click here to see answer by ankor@dixie-net.com(22740)

Question 303743: Please help me solve this problem 2x^-8x+3=0
I remember I have to divide both sides by 2 . Then use distribution. I appreciate your time.
Click here to see answer by jim_thompson5910(35256)

Question 303748: What is the maximum height of h=96t-16t power of two?
Click here to see answer by Alan3354(69443)

Question 303889: x^2-6x+11=0
Click here to see answer by checkley77(12844)

Question 303889: x^2-6x+11=0
Click here to see answer by london maths tutor(243)

Question 304001: Use the quadratic formula to determine the x-intercepts (if any) of the following function. Then evaluate the function for several values of x, and use the resulting points to graph the function. Show your work.
f(x) = -x2 + 2x - 1

Click here to see answer by richwmiller(17219)

Question 304015: How do you do a quadratic equation with the method from India. It starts off with moving the constant term to the right side of the equation and then multiplying each term by 4. In step 3 it tells you to square the co-efficient of the original x term and add it to both sides of the equation. After this point, I get lost because it asks to take the square root of both sides.

Click here to see answer by richwmiller(17219)

Question 304040: x(2)+5x+4=0
Click here to see answer by mananth(16946)

Question 304051: Please help me with this equation:
Click here to see answer by edjones(8007)

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