Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 952752: 2x^2+6x=18
Click here to see answer by Alan3354(69443)

Question 952749: 2x square + 7x +6 =0
Click here to see answer by MathLover1(20849)

Question 952766: A flower garden is in the shape of a right triangle. The longest side of the triangle measures 13 m. One of the shorter sides is 7 m longer than the other. Determine the length of the shortest side.
Click here to see answer by erica65404(394)

Question 952721: Find the quadratic equation whose roots are 1, 2 and passes through the point (0,2). Show your work.
Click here to see answer by rothauserc(4718)

Question 952836: 3x^2-6x+c=0 what value of c will the equation have one rational root
Click here to see answer by josmiceli(19441)

Question 952950: Can you complete the square for the quadratic equation of
13x^2 - 3

Click here to see answer by josgarithmetic(39616)

Question 953084: The vertex of y = -3x�- 6x - 9 lies in which quadrant?

Click here to see answer by Alan3354(69443)

Question 953084: The vertex of y = -3x�- 6x - 9 lies in which quadrant?

Click here to see answer by rothauserc(4718)

Question 953081: Find the quadratic function that includes each set of values.
(1, 0), (2, 5), (4, 21)
Click here to see answer by josmiceli(19441)

Question 953094: Find the quadratic function that includes each set of values.
(1, 0), (2, 5), (4, 21)
Click here to see answer by stanbon(75887)

Question 953087: Given f(x) = 1/3*(x - 4 )� + 7.
Identify the vertex.
Click here to see answer by stanbon(75887)

Question 953095: The cost in C dollars of manufacturing 'x' bicycles at Holliday's Production Plant is given by the function
C(x) = 2x� - 800x + 92,000.
Find the minimum cost.
Click here to see answer by josmiceli(19441)

Question 953423: Solve for x.
2x(x - 12) = -40
Click here to see answer by Fombitz(32388)

Question 953432: Simplify the expression.
8sqrt[-63]
Click here to see answer by stanbon(75887)

Question 953416: Write f(x) = -x� - 2x + 3 in vertex form.
Click here to see answer by Fombitz(32388)

Question 953437: Simplify the expression.
[sqrt 3 + 2i][sqrt 3 - 2i]
Click here to see answer by stanbon(75887)

Question 953435: Simplify the expression.
[4 - 7i] + [2 + 3i]
Click here to see answer by stanbon(75887)

Question 953434: Find the absolute value of the complex number.
|7 + 24i|
Click here to see answer by stanbon(75887)

Question 953447: Solve for x.
3x� + 2x = 12 - 7x
Click here to see answer by rfer(16322)

Question 953412: 2w^2-4w=96
Click here to see answer by Alan3354(69443)

Question 953424: Solve for x.
3x� + 2x = 12 - 7x
Click here to see answer by Alan3354(69443)

Question 953438: Solve for x.
3x� + 2x = 12 - 7x
Click here to see answer by Alan3354(69443)

Question 953793: Consider the quadratic function [f(x)=2(x-3)^2+5]
a)Identify the vertex
I believe this is [v=(3,5)]
b)Identify the axis of symmetry (x=?)
c)Identify the y-intercept
Click here to see answer by rothauserc(4718)

Question 953811: one of the roots of 3x^2+p=5x ,is 2.Determine the value of p and the other root.
Click here to see answer by stanbon(75887)

Question 953752: when the son will be as old as his father today, the sum of their ages will be 126.when the father was as old as his son today, the sum of their ages then was 38.Find their present ages

Click here to see answer by ankor@dixie-net.com(22740)

Question 953871: Determine whether each value of x is a solution of the equation. (Select all that apply.)
30x2 + 13x − 10 = 0

Click here to see answer by MathLover1(20849)

Question 953880: If f(x) = (3x + a), determine the values of 'a' for which, f(x2 + x + 2) - f(3x - a) = 0 will have real roots.
Click here to see answer by josgarithmetic(39616)

Question 953754: A track and field runner saves 1 hour by covering 112 km at a rate which is 2 km per hour faster than usual rate. How many hours does he usually take to travel this distance?
Click here to see answer by ankor@dixie-net.com(22740)

Question 953998: How to solve y=-x2+18x-56
Click here to see answer by Alan3354(69443)

Question 953998: How to solve y=-x2+18x-56
Click here to see answer by stanbon(75887)

Question 954033: Given y=Px^2+Qx+R,find the values of P,A and R,when the roots x are -2 and 0 .5.
Click here to see answer by josgarithmetic(39616)

Question 954033: Given y=Px^2+Qx+R,find the values of P,A and R,when the roots x are -2 and 0 .5.
Click here to see answer by MathTherapy(10551)

Question 954113: Which polynomial is prime?
7x2 � 35x + 2x � 10
9x3 + 11x2 + 3x � 33
10x3 � 15x2 + 8x � 12
12x4 + 42x2 + 4x2 + 14
Click here to see answer by Alan3354(69443)

Question 954116: Factor x3 + x2 + x + 1 by grouping. What is the resulting expression?
(x2)(x + 1)
(x2 + 1)(x)
(x2 + 1)(x + 1)
(x3 + 1)(x + 1)
Click here to see answer by Fombitz(32388)

Question 954115: Which shows a way to factor 10x3 � 8x2 � 25x + 20? Check all that apply.
2x2(5x � 4) � 5(5x � 4)
2x2(5x � 4) + 5(5x + 4)
5x(2x2 � 5) � 4(2x2 � 5)
5x(2x2 � 5) � 4(2x + 5)
10(x3 + 2) � 8(x3 + 2)
Click here to see answer by MathLover1(20849)

Question 954172: Quinn punted the football from a height of 3 feet above the turf field.The ball was kicked with an initial upward velocity of 68 feet per second
Will the ball reach a height of 70 feet?
How many seconds until the ball hits the ground?
Click here to see answer by Alan3354(69443)

Question 954308: When doing long division for 100 divided by 5 we get a quotient of 20 with no remainder. This implies that 5 and 20 are factors of 100 and we can write 100 = (5)(20). Using long division, determine if x - 2 is a factor of x2+ 2x - 8. If it is, identify the other factor and write
x2+ 2x - 8 as the product of (x - 2) and that other factor. You do not have to include the work of the long division here in this document, but you do have to write an explanation of how you arrived at the correct answer (after all this is a writing assignment =).

Click here to see answer by josgarithmetic(39616)

Question 954418: A photograph has a length that is 2 inches longer than its width, x. So its area is given by the expression x(x+2) square inches. If the area of the photograph is 48 square inches, what is the width of the photograph
Click here to see answer by macston(5194)

Question 954621: Hello, I certainly appreciate the help with algebra. It is still a foreign lanuage to me. This question I have is kind of a long one.
Let f(fx)+2?x-3 and g(x)+^5x+9 and M(x)+6
a( what is g(11)?
B) what is M(8)
C) find (f�g)(x)=f(x)g(x0 Do not simplify
d) find (fog)(x)=f(g(x)) Do not simplify
e) what is the domain of g?
f) what is the domain of f?
I got nothing so far. I'm not even sure where to start. Please help me!!!!!!!!!!!
Click here to see answer by josgarithmetic(39616)

Question 954665: A rectangle is drawn so the width is 16 inches longer than the height. If the rectangles diagonal measurement is 80 inches, find the height.
Please give simple step by step answer.The more steps shown the better.
Click here to see answer by josgarithmetic(39616)

Question 954751: Solve 3x^-2/3^-3=3^4

Click here to see answer by Alan3354(69443)

Question 954751: Solve 3x^-2/3^-3=3^4

Click here to see answer by MathLover1(20849)

Question 954791: After finding the axis of symmetry, vertex, and y-intercept of g(x) = x2 - 3x + 2, choose the graph that represents this function.
Click here to see answer by Fombitz(32388)

Question 954913: Find the other factor for the trinomial 28x�+57x+27 if one factor is (4x+3)

I have tried this problem like five times and I keep coming up with (9x-2)(3x+7)
what am I doing wrong?
Click here to see answer by Alan3354(69443)

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