Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 102482: Determine the equation of the parabola with vertex (-2,5) and that passes through (4,-8)
Click here to see answer by stanbon(75887)

Question 102489: x(squared)+9=4x
Click here to see answer by stanbon(75887)

Question 102481: determine the equation of the parabola with x-intercepts -4 and 3, and that passes through (2,7)
Click here to see answer by stanbon(75887)

Question 102486: 1
___ - 3= 8
x(squared) _____
x

Click here to see answer by stanbon(75887)

Question 102488: 14(x-4)-(x+2)=(x+2)(x-4)
Click here to see answer by stanbon(75887)

Question 102487: 3x+x(x-2)=4
Click here to see answer by oberobic(2304)

Question 102317: How do I find the maximum height of a baseball which is hit with an upward velocity of 90 feet per second when the initial height of the ball was 3 feet?
Click here to see answer by ankor@dixie-net.com(22740)

Question 102529: I am having major problems with this
y=x^2+5x-7
Click here to see answer by jim_thompson5910(35256)

Question 102533: I am having problems with this one.
x^2+2x-8=0
Click here to see answer by jim_thompson5910(35256)

Question 102534: I am having problems with this one
x^2=-5x-5
Click here to see answer by jim_thompson5910(35256)

Question 102535: I am having problems with this one
x^2+7x-1=0
Click here to see answer by jim_thompson5910(35256)

Question 102542: The demand and supply equations for a certain item are given by
D=-5p+40
S=-p^2+30p-8
Find the equilibrium price.

Click here to see answer by stanbon(75887)

Question 102549: Use the quadratic formula to solve the following quadratic equations
3x�- 2x + 1 =0
Click here to see answer by jim_thompson5910(35256)

Question 102555: Find the solutions to the equation x-5/x= 4.
Click here to see answer by jim_thompson5910(35256)

Question 102564: Can someone please, please help me with this one?
16x^4 - 40x^2 + 9
Click here to see answer by jim_thompson5910(35256)

Question 102576: to do a work independently B requires six days more than what A requires. if they work together ,it will take two days less than what A alone takes.in how many days can B alone complete the work?
Click here to see answer by josmiceli(19441)

Question 102567: Please help me with this one.

^3 - 5x + 1 / x-35x
Click here to see answer by stanbon(75887)

Question 102546: Solve each equation for x. Factor the left-hand side
x� +4x + 4 =7

Click here to see answer by stanbon(75887)

Question 102532: I am having major problems with this
5(x-2)^2=3
Click here to see answer by stanbon(75887)

Question 102586: given the x-intercepts of y=x^2-4x-21
a. (-3,0)and (7,0)
b. (3,0) and (-4,0)
c. (-7,0) and (4,0)
d. No x-intercepts
Click here to see answer by jim_thompson5910(35256)

Question 102585: This ? is hard please help?
The demand and supply equations for a certain item are given by
D=-5p+40
S=-p^2+30p-8
find the equilibrium price.
a. $1.57
b. $1.71
c. $1.43
d.$1.29
Click here to see answer by jim_thompson5910(35256)

Question 102583: Solve by using the quadratic formula. 5x^2+5x=3
a. -5+-square root 85 over 10
b. -5+-square root 85 over 5
c. -5+-square root 40 over 5
d. -5+-square root 40 over 10
Click here to see answer by jim_thompson5910(35256)

Question 102547: Solve the following quadratic equations by completing the square.
x� - 6x -3 = 0

Click here to see answer by edjones(8007)

Question 102617: Could some one please help me solve this equation using the quadratic equation?
Click here to see answer by jim_thompson5910(35256)

Question 102617: Could some one please help me solve this equation using the quadratic equation?
Click here to see answer by edjones(8007)

Question 102616: 5x to the 2 power +9x+1=0
Click here to see answer by jim_thompson5910(35256)

Question 102616: 5x to the 2 power +9x+1=0
Click here to see answer by edjones(8007)

Question 102584: Solve. 5(x-2)^2=3
a. 1/5 19/5
b. 10+-square root15over 5
c. 10+-square root3 over 5
d. +- 59 over 25
Click here to see answer by jim_thompson5910(35256)

Question 102584: Solve. 5(x-2)^2=3
a. 1/5 19/5
b. 10+-square root15over 5
c. 10+-square root3 over 5
d. +- 59 over 25
Click here to see answer by edjones(8007)

Question 102538: find the x-intercepts
y=x^2+5x+2
Click here to see answer by jim_thompson5910(35256)

Question 102544: solve by using the quadratic formula?
5x^2+5x=3

Click here to see answer by jim_thompson5910(35256)

Question 102545: I am having a hard time with this one.
9x^2=14
Click here to see answer by jim_thompson5910(35256)

Question 102539: is the following trinomial a perfect square?
x^2+18x+81
Click here to see answer by bucky(2189)

Question 102753: 3x2 -15x + 12 =
Click here to see answer by jim_thompson5910(35256)

Question 102531: I am having major problems with this
(x+5)^2=3
Click here to see answer by ankor@dixie-net.com(22740)

Question 102791: 24x�-2x=15 solve the equation by factoring and quadratic formula
Click here to see answer by jim_thompson5910(35256)

Question 102809: Tutor,
Could you help me with these two problems?
Solve the following quadratic equation by factoring or by any other method you choose.
(x-1)^2 = 7
and
4x^2 - 8x + 3 = 5
Thank you for your help with these problems.
Click here to see answer by scott8148(6628)

Question 102876: Tutor,
I was hoping you could help me with this problem. I can not seem to get it to check out and I am not sure where I am making the mistake.
Solve for X
x^2 + 4x + 4 = 7
I know I have the factor the left-hand side but I must be doing something wrong because it is not working out for me. Any help would be great. Thank you in advance for your time.

Click here to see answer by rapaljer(4671)

Question 102961: Suuppose that Wendy rides her bicycle 30 miles in the same time that it takes kim to ride her bicycle 20 miles. IF wendy rides 5 miles per hour faster than kim, find the rate of each.
Click here to see answer by ankor@dixie-net.com(22740)

Question 103033: 0=xx(squared)-50x+175 ????? I tried to use the quadratic formula, but it became a imaginary number, and I need to have a positive number.
thanks
-tiproggrammer
Click here to see answer by stanbon(75887)

Question 103012: A bullet is fired vertically into the air with an initial velocity of 1200 feet per second. Its height h, in feet after t seconds is given by the formula h=1200t-16t^2.
Please answer this question, nobody else has, or at least hasn't correctly, thank you, your help is appreciated.
Click here to see answer by stanbon(75887)

Question 103060: Hello Tutor,
I was hoping you could help me with this problem.
Solve the following quadratic equation by completeing the square:
2x^2 + 10x + 11 = 0
Any help this evening on this problem would be appreciated. Thank you.
Click here to see answer by stanbon(75887)

Question 103071: I am totally stumped at the end and need some help.
16x^4 - 40x^2 + 9
I have: (4x^2 -1) (4x^2 -9) and now I'm lost. Can someone help me to factor this completely where I can understand. Thank you.
Click here to see answer by Earlsdon(6294)

Question 103011: A bullet is fired vertically into the air with an initial velocity of 1200 feet per second. Its height h, in feet after t seconds is given by the formula h=1200t-16t^2.
Please answer this question, nobody else has, or at least hasn't correctly, thank you, your help is appreciated.
Click here to see answer by scott8148(6628)

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