Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 294976: x+9=400 x(x+9)=400 x+9x+400=0
Click here to see answer by helpnalgebra(91)

Question 294786: 5x^2-33z-14 Please factor
Click here to see answer by scott8148(6628)

Question 294789: 49x^2-y^2 Please factor
Click here to see answer by scott8148(6628)

Question 294998: write a quadratic equation whose solutions are: 1/2 and 10/3 I can get that the first is 6x^2+ +10=0 I cannot figure the middle solution?
Click here to see answer by richwmiller(17219)

Question 295051: (x-11) squared =45
Click here to see answer by FireFox(3)

Question 295051: (x-11) squared =45
Click here to see answer by richwmiller(17219)

Question 295049: 2m-5=3
Click here to see answer by rfer(16322)

Question 295103: Please help me solve this function?

y=x^2-2x-8
Click here to see answer by richwmiller(17219)

Question 295099: Please help me solve this function?

y=x^2-2x-8
Click here to see answer by richwmiller(17219)

Question 295134: 5z^2-33z-14 Factor.
Click here to see answer by edjones(8007)

Question 295154: (4z^2+4z-80)/(z^2-11z+28) Simplify
Click here to see answer by mananth(16946)

Question 295153: -6/(x-1)+(2-3x)/x Add and simplify
Click here to see answer by mananth(16946)

Question 295151: (7w-4x)/9w-(6w+10x)/9w Subtract, write your answer in the lowest term
Click here to see answer by mananth(16946)

Question 295273: Missing proceeds. Ruth and Betty sell apples at a farmers
market. Ruth�s apples sell at 2 for $1 while Betty�s slightly
smaller apples sell at 3 for $1. When Betty leaves to pick
up her kids they each have 30 apples and Ruth takes
charge of both businesses. To simplify things, Ruth puts all
60 of the apples together and sells them at 5 for $2. When
Betty returns, all of the apples have been sold, but they
begin arguing over how to divide up the proceeds. What
is the problem? Explain what went wrong.
Click here to see answer by richwmiller(17219)

Question 5195: please help me solve this equation using the quadratic formula

2x*1=2
2=2
Click here to see answer by nia50041(1)

Question 295332: Solve using the quadratic formula.

Could someone please help me with this? I appreciate it.
Click here to see answer by jim_thompson5910(35256)

Question 295363: what do you do if there is no real solution in a quadratic equation?
Click here to see answer by Fombitz(32388)

Question 295510: The sum S of a list of consecutive integers beginning with one can be determined by evaluating the formula S=n/2(n+1), where n is the number of integers in the list. Using this formula, determine the number of consecutive positive integers beginning with one that must be added together so that the sum is 703.
Click here to see answer by alicealc(293)

Question 295535: Why is the term QUADRATIC used for equations of the form ax^2+bx+c=0? What does quadratic mean or refer to?
Click here to see answer by Alan3354(69443)

Question 295538: Please help me with the following problem
Solve the equation
1/2x2 -4x +8 = 0
this is what i did (1/2x-2)(x-4) = 0
then using the repeat factor of 0, i got x=4
Click here to see answer by stanbon(75887)

Question 295599: a machine produces 435 bolts in 40 minutes. At the same rate, how many bolts would be produced in 24 minutes
Click here to see answer by mananth(16946)

Question 295606: √(z-28)=7 solve for z, where z is a real number, if more than 1 solution separate with a comma
Click here to see answer by user_dude2008(1862)

Question 295598: -6/((x+1)(x+6))=2+3/(x+6) solve for x , if there is more than 1 solution separate with a comma
Click here to see answer by mananth(16946)

Question 295631: Why is it sufficient to define a quadratic function, f(x) = ax2 + bx + c in terms of a, b, and c?
Click here to see answer by stanbon(75887)

Question 295560: help me understand quadratic equations in plain english PLEASE!!!!
Click here to see answer by richwmiller(17219)

Question 295637: Identify the vertex and the y-intercept of the graph of the function y=-3(x+2)^2 +5.
Click here to see answer by Fombitz(32388)

Question 295597: 〖-9〗^(6/y) Solve for y, simplify your answer as much as possible
Click here to see answer by Alan3354(69443)

Question 295682: If p not equal to q, p square = 5p-3 and q square = 5q-3, then find the equation having root p/q and q/p
a) x^2-19x+3=0
b) 3x^2-19x-3=0
c) 3x^2-19x+3=0
d) 3x^2+19x+3=0
Click here to see answer by richwmiller(17219)

Question 295699: what is the sum of the squares of the roots of the equation x^2 + 2x = 80?
Click here to see answer by nyc_function(2741)

Question 295679: 1/4x-3/8(3x-1/2)=-x-1/8
Click here to see answer by faceoff57(108)

Question 295717: x^2+4x+3=0, how do i solve this
Click here to see answer by jim_thompson5910(35256)

Question 295725: This is how I solved the problem. Where did I mis-calculate?

-3(-3)+- sq.rt(-3)^2-4`1`(-28) 3 +- sq.rt.729 3+9
______________________________ = x= ______________ = _____
2`1 2 2
x= 3-27 = -24 = -12 or x= 3+27 = 30 = 15
____ ___ ____ __ -12,15
2 2 2 2

Click here to see answer by jim_thompson5910(35256)

Question 295727: This is how I solved the problem. Where did I mis-calculate?

-3(-3)+- sq.rt(-3)^2-4`1`(-28) 3 +- sq.rt.729 3+9
x= 3-27 = -24 = -12 or x= 3+27 = 30 = 15
all divide by 2
Click here to see answer by solver91311(24713)

Question 295753: Find the vertex in g(x)=-x2 - 2x - 3
Click here to see answer by Fombitz(32388)

Question 295782: Factoring a quadratic with leading coefficient greater than 1
3y^2+7y-6
Click here to see answer by Fombitz(32388)

Question 295782: Factoring a quadratic with leading coefficient greater than 1
3y^2+7y-6
Click here to see answer by richwmiller(17219)

Question 295916: Can someone please help me solve the quadratic equation
7x^2-5=0
This is what I have tried, but I don't think I am on the right track so I didn't go any further.
x(7x+5)=0
x=0 7x+5=0
7x=-5
x=-5/7
Click here to see answer by bobdabuildr(27)

Question 295918: Find the roots of the quadratic equation w^2+3w+2=0
Click here to see answer by bobdabuildr(27)

Question 295915: Please help me solve the quadratic formula
9/8-2=5/x^2
Thank you for your time
Click here to see answer by bobdabuildr(27)

Question 295927: Solve (t+10)^2-36=0, where t is a real number. Simplify your answer as much as possible, if more than 1 solution separate with a comma
Click here to see answer by bobdabuildr(27)

Question 295931: Write the following in simplified radical form ∛250
Click here to see answer by nerdybill(7384)

Question 295922: Solve the equation for w
(w-3)^2=2w-9w+11 if more than 1 solution separate with a comma
Click here to see answer by mananth(16946)

Question 295930: ∛125 What ia the value of this
Click here to see answer by nerdybill(7384)

Question 295934: Simplify 4 5/2
Click here to see answer by Earlsdon(6294)

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