Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 885866: how to solve the equiation for x:
x^2-ax-bx+ab=0
Click here to see answer by Edwin McCravy(20054)

Question 885979: find the quadratic equation whose roots is;
three times the roots of 3x^2-10x+3=0
Click here to see answer by basketball1127(19)

Question 885980: find the quadratic equation whose roots is;
square root of the roots of 4x^2-25x+36=0
Click here to see answer by Theo(13342)

Question 885977: Find the quadratic equation whose roots are
twice the roots of 3x�+19x-14=0
Click here to see answer by Edwin McCravy(20054)

Question 886129: Find all values of for which the quadratic equation has one real solution.
9x^2-5x-h=0

Write your answer as an equality or inequality in terms of .
Click here to see answer by josgarithmetic(39614)

Question 886134: Please help me to solve by factoring;
X^2=3x+18
X=
Click here to see answer by josgarithmetic(39614)

Question 886476: Solving equations by completing the square!
r^2+2r-33=0. 6. a^2-2a-48=0. thank you!
Click here to see answer by Edwin McCravy(20054)

Question 886476: Solving equations by completing the square!
r^2+2r-33=0. 6. a^2-2a-48=0. thank you!
Click here to see answer by lwsshak3(11628)

Question 886504: write an equation for the parabola with vertex (-2,3) and the y-intercept -1

Click here to see answer by stanbon(75887)

Question 886543: .6=x/(x+2163)
Please walk me through the steps, feeling foolish!
Click here to see answer by josgarithmetic(39614)

Question 886674: Find the vertex of an equation! y=3x^2-12x+5
Click here to see answer by stanbon(75887)

Question 886672: Change from standard form to vertex form! y=-6(x-2)^2+5
Click here to see answer by stanbon(75887)

Question 886722: 1) solve the following equation for n
G = w + 150n
2) Solve for T
26-3T = 38

Click here to see answer by jim_thompson5910(35256)

Question 886753: The sum of the roots of equation is 2 and sum of their cubes is 98 than find the equation
Click here to see answer by dkppathak(439)

Question 886620: A football is kicked at 40 yards away from a goal post that is 10 feet high. Its path is modeled by y = -0.03x^2 + 1.6x, where x is the horizontal distance in yards traveled by the football and y is the corresponding height above the ground in feet.
Does the football go over the goal post, and How far above or below the goal post is the football? Thanks.
Click here to see answer by rothauserc(4718)

Question 886833: Part of a cheerleading routine is throwing a flyer straight up and catching her on the way down. The flyer begins this move with her center of gravity 4 feet above the ground. She is thrown with an initial vertical velocity of 30 feet per second.
So knowing this:
Will the flyer�s center of gravity ever reach 20 feet?
For the flyer to have her center of gravity reach 25 feet, what does the initial velocity need to be? Thanks.
Click here to see answer by rothauserc(4718)

Question 886855: Mang Juan owns a rectangular lot. The perimeter of the lot is 90 m and its area is 450 m^2. What equation represent the perimeter of the lot? How about the equation that represents its area?
Click here to see answer by josgarithmetic(39614)

Question 886874: What is the solution for this?
Please use the 4 methods in quadratic equation to see the answer:
*extracting the square root
*Factoring
*Completing the square
and *Quadratic Formula
The length of a rectangular garden is one more than thrice it's width. Its area is 80 m^2. Find the length and the width.
Much thanks!
Click here to see answer by josgarithmetic(39614)

Question 886878: Solve using the quadratic formula
5x^2-8x-2
Click here to see answer by Alan3354(69443)

Question 886881: Please help me! I would appreciate it.
1.) Find a quadratic equation in terms of x whose roots are
a.) 7 and -2
b.) 1/2 and 1/3
c.)
2.) Find k so that the roots are:
a.) not real
b.) real and equal
c.) real and unequal
3.) Find the value of p so that the roots of 4x^2 = 40x-p difference by 3?
Click here to see answer by mananth(16946)

Question 886893: can you please state the significance of the discriminant in relation to the ratio of the quadratic equation?
Click here to see answer by josmiceli(19441)

Question 886877: What is the solution for this?
Please use the 4 methods in quadratic equation to see the answer:
*extracting the square root
*Factoring
*Completing the square
and *Quadratic Formula
The sides of a square are increased to form a rectangle. One side is increased by 3 units and the other side is increased by 4 units. The area of the rectangle is 110 square units. What was the length of the side of the square?
Much thanks!
Click here to see answer by rothauserc(4718)

Question 886969: 4x^2 -100=0 I need this solved please.
Click here to see answer by stanbon(75887)

Question 886983: mr.cruz ask emilio to construct a square table that is 3m^2. is it possible for emilio to construct table using ordinary tape measure?

Click here to see answer by Alan3354(69443)

Question 887003: Solve using quadratic formula
y= 5x^2-8x-2
x= 8� sqrt ( 104 )
------------
10
x= 8 � sqrt (4*26)
---------------
10
x= 8� 2 sqrt (26)
--------------
10

x= 4� sqrt (26 )
------------
5
That is what I tried. Can you please correct me if something is wrong with my answer.
Click here to see answer by richwmiller(17219)

Question 887007: A rectangular Garden has an area of 132 m^2 and a perimeter of 46 m. What equation would describe the area of the garden? Write the equation in terms of the width of the garden
Click here to see answer by josgarithmetic(39614)

Question 887008: Mang Juan owns a rectangular lot. The perimeter of the lot is 90 m and its area is 450 m^2. What are the dimensions of the rectangular lot.
Click here to see answer by josgarithmetic(39614)

Question 887095: What is the maximum height of the toy? At what time did the toy reach that height?
equation: y=-2x^2+4x+1300
Click here to see answer by Alan3354(69443)

Question 887128: I. Given the following polynomial: 2x^2+7x-15=0 . Check all that apply.
 The value of the discriminant is 169.
 There are 2 real roots.
 There are 2 irrational roots.
 The graph intersects the y-axis twice.
 The parabola is directed upward.
 The axis of symmetry is located at x=-7/4
 The vertex is located at: (-7/4, -49/8)
 The roots are: (5,3/2)
 The graph intersects the y axis at (0, -15).
 The graph intersects the x-axis at (-5, 0) and (1.5, 0)
HELP PLEASE
Click here to see answer by josgarithmetic(39614)

Question 887201: Let f(x) = x^3 and g(x) = 6x + 1. Find the following value.
f[ g (-1) ]
Click here to see answer by josgarithmetic(39614)

Question 887202: For the given equations, find a) f(0) b) the zeros of f
(I got the first part, a, but I didn't understand the second part, b. It would be great if someone helped :) )
1. f(x) = 4x - 20
2. f(x) = x^2 + 4x - 12
Click here to see answer by lwsshak3(11628)

Question 887190: X^4-30x^2+125
Click here to see answer by lwsshak3(11628)

Question 887363: Write the equation of a parabola, in standard form, that goes through these points:
(0, 3) (1, 4) (-1, -6)

Graph the parabola above. Indicate the vertex and axis of symmetry.
Click here to see answer by josgarithmetic(39614)

Question 887417: solve equation transformable to quadratic equation
solve:
2x square/5 + 5x/4 = 10
Click here to see answer by Alan3354(69443)

Question 887419: equation transformable to quadratic equation
solve:
2x square/5 + 5x/4 = 10
Click here to see answer by Alan3354(69443)

Question 887457: Hi there. I need help with these questions. Writing each first in vertex form, and then in standard form.
1) vertex (3,5) and passing through (1,1)
2) vertex (1,-7) and passing through (-2,29)
3) vertex (-6,-5) and passing through (-3,4)
Click here to see answer by josgarithmetic(39614)

Question 887474: Hi there I need help figuring out what's to do for the following question.

The path of a ball is modeled by the quadratic function h(t)=-5(t-2)^2+23, where height, h(t), is in meters and time, t, is in seconds.
1) When will the ball reach a height of 18 m?
Click here to see answer by Alan3354(69443)

Question 887557: x(squared)-2x+4 I need to factor this. I can find no numbers that multiply to equal 4 who's sum is -2.
Click here to see answer by Edwin McCravy(20054)

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