Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 241001: find the root of this equation by factoring:
x+8x=-16
Click here to see answer by stanbon(75887)

Question 241028: Solve the following equation using quadratic formula:
x^2+12+35=0
The solution set is { , }

x=(-12�√(〖12〗^2+35))/2

(x+5)(x+7)= 12/2= {5,7}
thanks for you help
Vicki
Click here to see answer by rapaljer(4671)

Question 241069: how to solve this equation using direct variation? 5x-6y=0
Click here to see answer by Edwin McCravy(20054)

Question 241157: "You are told to build a rectangular fence along side a building. You have only 80 feet of fencing. The company wants the maximum amount of area enclosed. Find the dimensions that will lead to the most area"
All I need is the equation and I understand the problem from that point.
Click here to see answer by ankor@dixie-net.com(22740)

Question 241366: find the vertex, the line of symmetry,
the maxiumum or minimum value of the quadratic
function and graph the function
f(x)=7-x2 and find zeros
Click here to see answer by stanbon(75887)

Question 241365: the base of a triangular sail is 20m shorter than it's height.
the area is 150m2. find the base and height of the sail.

Click here to see answer by unlockmath(1688)

Question 240518: x^2+6x+6=0 solve with quadratic formula
Click here to see answer by Alan3354(69443)

Question 241529: if the vertex of the graph of a quadratic function lies in quadrant III and the graph opens down, how many x-intercepts doe sthe graph have?
Click here to see answer by rapaljer(4671)

Question 241545: The height, h, of a cricket ball above the ground after t seconds is given by the eqaution h = 20t - 5t^2.
When is the ball 25 metres above the ground?

Need help! Don't know what to do! Maths exam tomorrow
Click here to see answer by jsmallt9(3758)

Question 241535: find a polynomial f(x) of degree 3 that satisfies the following condition: -2 is a zero of multiplicity 3; f(-1) = 4
Click here to see answer by jsmallt9(3758)

Question 241561: Efendi can buy an exact number of footballs with RM120. However, if the price of the football is reduced by RM6, he can buy an extra football. Determine the original price of the football.
Click here to see answer by Theo(13342)

Question 241543: Here's my question.
Graph each parabola. Identify the vertex, intercepts, and the maximum or minimum y-value.
f(x) = 16 � x^2
Once I figure out the problem then I should be able to graph it I hope. Thanks.
Click here to see answer by edjones(8007)

Question 241499: Genelle and Eljen can paint a room together in 4 hours. Working alone, Genelle can paint the room in two hours less than Eljen can. Find how long it takes Eljen to paint the room alone.
Click here to see answer by checkley77(12844)

Question 241570: BY REDUCTION OF RE1PERKG IN THE PRICE OF SUGAR,MOHAN CAN BUY 1kg SUGAR MORE FOR RS56.FIND THE ORIGINAL PRICE OF SUGAR PERkg.

Click here to see answer by stanbon(75887)

Question 241607: Molly�s age is twice Anita�s. If the sum of the squares of their ages is 80, then translate these words into an algebraic equation to determine their ages?
Click here to see answer by josmiceli(19441)

Question 241648: A rectangular picture frame measures 20cm by 30cm. A new frame is to made by increasing each side length by the same amount. The resulting enclosed area is to be 1064cm squared. Find the dimensions of the new picture frame.
Click here to see answer by unlockmath(1688)

Question 241667: solve the equation x squared minus 8x plus 25 = 0
Click here to see answer by vleith(2983)

Question 241501: A swimming pool holds 600 cubic meters of water. It can be drained at the rate of 9 minutes faster than it can be filled. If it takes half an hour to fill it than to drain it, find the drainage rate.
Click here to see answer by ankor@dixie-net.com(22740)

Question 241713: 5x�-2x=3 What is the solution set
Click here to see answer by College Student(505)

Question 241722: what are some problems that you can send me for the california exit exam ?
Click here to see answer by Alan3354(69443)

Question 241663: how do i create an x and y table of values to this quadratic equation- x-3x-4=0
Click here to see answer by College Student(505)

Question 241727: The value of the discriminant is ________?
27x� = 18x � 3
How many solutions are there?
Are they a) rational?
b) Irrational
c) Imaginary solutions?

Click here to see answer by JimboP1977(311)

Question 241759: 5y(y + 9) = 6(y + 9)
Click here to see answer by jim_thompson5910(35256)

Question 241751: can you figure out the answer to this equation, 3x^2+14x+94 using the completing the square method?
Click here to see answer by jim_thompson5910(35256)

Question 241751: can you figure out the answer to this equation, 3x^2+14x+94 using the completing the square method?
Click here to see answer by JimboP1977(311)

Question 241787: How do I graph this eqn? y= -x^2
Click here to see answer by JimboP1977(311)

Question 241787: How do I graph this eqn? y= -x^2
Click here to see answer by checkley77(12844)

Question 241788: i have -16x^2+88x+3=124 and i have to use the quadratic formula to solve the equation and i have to know at what point of the process does it become obvious that there is only one solution to this equation?
Click here to see answer by JimboP1977(311)

Question 241790: y=-16x^2+88x+24 how do you solve that with the quadratic equation?
Click here to see answer by stanbon(75887)

Question 241820: how would you do this problem?
solve(find the x intercepts)
x to the second power-8x=-16
Click here to see answer by stanbon(75887)

Question 241821: Is y=x^7 an example of a linear, quadratic or exponential equation?
Click here to see answer by stanbon(75887)

Question 241920: if a,b are the roots of the equation 2x2+6x-10=0.Find a4+b4,a3-b3,a6+b6,a6-b6
Click here to see answer by Edwin McCravy(20054)

Question 242047: If the base of a triangle is 8x+16 yards, and its height is 1 over x+2 yards (written as a fraction), then what is the area of the triangle?
Thank you!
Click here to see answer by Theo(13342)

Question 242001: Hello,
Please help me with the following problem:
1. Solve the equation by the method of your choice.
5x^2-18x=8
The solution set is_________ (Simplify your answer. Type integers or fractions. Use a comma to separate answers.)
Click here to see answer by scott8148(6628)

Question 242054: FIND THE BASE AND HEIGHT OF A TRIANGLE
area=60sq units base= 3x+6 height= x+5
area=1/2 bh help???
Click here to see answer by stanbon(75887)

Question 242122: Find the smallest integral value of c for which the roots of 2x^2-8x+C=0 ARE imaginary.... please help and thanks
Click here to see answer by stanbon(75887)

Question 242125: what is 50x squared - 2?
Click here to see answer by Alan3354(69443)

Question 242126: write the quadratic equation whose roots are 3+i and 3-i please show step by step.....
Click here to see answer by Alan3354(69443)

Question 242128: how to factor -4.9x^2+24x+2=0
Click here to see answer by checkley77(12844)

Question 242128: how to factor -4.9x^2+24x+2=0
Click here to see answer by stanbon(75887)

Question 242146: what is the difference between factoring quadratic equation and solving a quadratic equation?
Click here to see answer by College Student(505)

Question 242005: Hello,

Please help me with:
1. Evaluate the function f(x)=x^2+2x+9 at the given values of the independent variable and simplify.
a. f(-2) b. f(x+9) c. f(-x)
a. f(-2)=______________________
Thanks so much for your help!!
Click here to see answer by dpaulin(12)

Question 242416: I am having trouble solving this rational expression. 4a/5a-10 + 3a/10a-20

Kerri
Click here to see answer by MRperkins(300)

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, 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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, 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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, 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