Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 461800: Hi
I hate to bother you all again but this morning I asked help in this problem and no one has answered me, please someone help me.
Click here to see answer by rwm(914)

Question 461813: 1. 2x^2+5x-3=0

Click here to see answer by rwm(914)

Question 461844: 2x^2 + 32x -34 = 0
Click here to see answer by jim_thompson5910(35256)

Question 461871: Death Valley is 282 ft. below sea level. How many yards is this?
Click here to see answer by solver91311(24713)

Question 461997: I am having a lot of problems understanding how this works as I've tried to understand it based on others explanations. I vaugely remember the foil method as I know it was used in areas such as this but it's been a very long time since I've done them. If you could please help me understand how to get the right answer in easier to understand terms step by step for each I would really appreciate it! Thanks!!
Explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c. Is there more than one way to factor this? Show your answer using both words and mathematical notation.

Click here to see answer by stanbon(75887)

Question 461985: Please help me with one more, very confusing. simplify:
x-4/x-7-x+1/x+7+x-49/x^2-49
Thank you
Gina
Click here to see answer by katealdridge(100)

Question 461975: Good morning everyone,
please help
Find the vertex and line of symmentry:
f(x)=1/2(x+2)^2+1
Thank you
Gina
Click here to see answer by katealdridge(100)

Question 461977: Hello again,
I have one more
convert to decimal notation
8.04x10^7
Thank you,
Gina
Click here to see answer by poliphob3.14(115)

Question 462092: Factor when possible:
a^2-7ab+6b^2
Please show me step by step to get the answer. Thanks
Click here to see answer by MathLover1(20849)

Question 462091: Factor when possible:
x^2+10xy+9y^2
Please show me step by steps to get the answer. Thanks
Click here to see answer by stanbon(75887)

Question 462147: Suppose that the cost C, in dollars, of producing x chairs in a factory is given by the following equation:
C = 2x2 � 40x + 2400
How many chairs can be produced for $4650?
Your Solution

Click here to see answer by rwm(914)

Question 462090: Factor when possible:
x^2+8x-12
Please show me the steps to get the answer. Thanks
Click here to see answer by rwm(914)

Question 462185: I am doing a worksheet that focuses on demand and revenue. Am having problems writing the correct equations
Click here to see answer by richard1234(7193)

Question 462262: 1. Rewrite y = x2 + 14x + 29 in general form.
2. Rewrite y = 3x2 - 24x + 10 in general form.
3. Solve for x: (x - 9)2 = 1
4. Solve for x: x2 + 24x + 90 = 0
5. Solve for x: 2x2 - 4x - 14 = 0
6. Create your own quadratic equation and demonstrate how it would be solved by graphing, factoring, the quadratic formula, and by completing the square.

Click here to see answer by MathLover1(20849)

Question 462296: Could you please help with this problem?
The profit function for the
recklus Hang gliding service is P(x) = -0.2x^2 +fx - m, where f represents the set up fee for a customer's daily excursion and m represents the monthly hanger rental. Also, P represents the monthly profit in dollars of the small business where x is the number of flight excursions facilitated in a month.
A) if $30 is charged for a set up fee, and the monthly hanger rental is $600, write an equation for the profit, P, in terms of x.
b) How much is the profit when 40 flight excursions are sold in a month?
c) How many flight excursions must be sold in order to maximize the profit? Show the work algebraically.
d) What is the maximum profit.
Click here to see answer by htmentor(1343)

Question 462334: Factor: Factor the product of polynomial
15w^3+5w^2-6w-2
Please show me steps by steps to get the answer. Thanks
Click here to see answer by amoresroy(361)

Question 462348: x^2=45
Click here to see answer by asuar010(338)

Question 462367: Factor: Factor the product of polynomial
1+9w^2-6w
Please show me the step by step to get the answer. Thanks
Click here to see answer by MathLover1(20849)

Question 462416: for the following equation, state the value of the discriminant and then describe the nature of the solutions: 10x^2 - 4x - 7 = 0
Click here to see answer by algebrahouse.com(1659)

Question 462366: Factor: Factor the product of polynomial
2r^2+5r+4
Please show me the step by step to get the answer. Thanks
Click here to see answer by solver91311(24713)

Question 462419: Identify the degree of each term of the polynomial and the degree of the polynomial: -5x^3 + 3x^2 + 3x + 2
Click here to see answer by solver91311(24713)

Question 462365: Factor: Factor the product of the polynomial.
6x^2-13x+6
Please show me step by step to get the answer. Thanks
Click here to see answer by solver91311(24713)

Question 462500: Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring.

1) State the pros and cons of each of the four methods
2) When might each method be most appropriate?
3) Under what circumstances would you prefer to use one method over the other? Prioritize the four methods based on your preferences
Click here to see answer by rwm(914)

Question 462550: find all real solutions of the equations : (x^2 +1)^2 - 18( x^2 +1) = -17
Click here to see answer by MathLover1(20849)

Question 462687: Can 3sqrt(3)+sqrt18 be simplified even more?
Click here to see answer by nerdybill(7384)

Question 462637: Use the discriminant to determine all values of k that would result in the equation
x^2 − kx + 4 = 0 having equal roots.

Click here to see answer by robertb(5830)

Question 462509: Please help me find the quadratic function given by that models this data: Year - 1940, 1968, 1997; Wage ($) - 0.25, 1.60, 5.15. I would love to know the steps to do this, and then I can find the answer. I just don't know where to start. Thank you.
Click here to see answer by jsmallt9(3758)

Question 462778: Determine the graph of the quadratic equation y = x^2 - 2x + 3.
Click here to see answer by Gogonati(855)

Question 462778: Determine the graph of the quadratic equation y = x^2 - 2x + 3.
Click here to see answer by MathLover1(20849)

Question 462810: Without graphing, tell how many x-intercepts y = �3x2 + 4x + 4 has.
A)3 intercepts B)2 intercepts C)0 intercepts D)1 intercept
Click here to see answer by richard1234(7193)

Question 463055: Find the value of p if the roots of the quadratic equation 4x^2-(5p+1)x+5p=0 differ by 1
Click here to see answer by richard1234(7193)

Question 463056: (a) Find the value of m for which the line y=mx-3 is a tangent to the curve y=x+1/x and find the x-coordinate of the point at which this tangent touches the curve.
(b) Find the values of c and d for which {x:-5 ps. I have the answers but i do not know how to derive to the answer. Your help will be appreciated. Thank you:)
answers: (a)m=-5/4, x=-2/3 (b)c=2, d=15
Click here to see answer by htmentor(1343)

Question 463239: Factor: Factor the product of polynomial
4r^2-20ry+25y^2
Please show me steps by steps to get the answer. Thanks
Click here to see answer by Edwin McCravy(20054)

Question 463237: Factor: Factor the product of polynomial
6x^2-13x+6
Please show me steps by steps to get the answer. Thanks
Click here to see answer by Edwin McCravy(20054)

Question 463331: 9x^2=2x-5
My answer is x=4/3
Is this the correct answer?
Click here to see answer by Alan3354(69443)

Question 463331: 9x^2=2x-5
My answer is x=4/3
Is this the correct answer?
Click here to see answer by jorel1380(3719)

Question 463353: How can you solve a quadratic equation when only the solution is given?
Click here to see answer by Alan3354(69443)

Question 463659: How is the zero product property used to solve a quadratic equations? What would be an good example of this?
Click here to see answer by richard1234(7193)

Question 463628: I am stuck on this problem, any help would be greatly appreciated.
Given a rectangle with a fixed perimeter of 372 feet, what dimensions would yield the maximum area? What is the maximum area?
Click here to see answer by rfer(16322)

Question 463347: The area of this rectangle is 45 square units. Find its length (the horizontal side) and the width (the verticle side). Length is x+6, width is x-6
a) Write an equation using the formula and the given information.
45=
b) Solve the equation, giving only the solution(s) that make sense in the problem. The solution for x is_____
c) Use the solution to find the indicated dimensions of the figure.
Length=
Width=
Click here to see answer by lwsshak3(11628)

Question 463852: 16. What are the roots of the equation 3x2 − 9x − 5 = 0?
(Points : 5)
Click here to see answer by MathLover1(20849)

Question 463887: Could you help me answer this problem.
Simplify by taking roots of the numerator and the denominator.
3sqrt 729^14/y^3
Click here to see answer by stanbon(75887)

Question 463889: Solve:
3x^2+3x-90=0
Please show me the step by steps to get the answer. Thanks
Click here to see answer by stanbon(75887)

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