Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 282614: Hi I have a question what is these equations:y=x^2+3, y=-x^2-4x-4, y=x^2+2x+3
Thank You
Click here to see answer by Alan3354(69443)

Question 282629: Please help, I am struggling on these two problems(:

and also

I have tried this one and found it has no solutions. Is this accurate?
Please and thank you(:
Click here to see answer by jim_thompson5910(35256)

Question 282636: cab you solve this quadratic equation 8x^2+1=4x
Click here to see answer by jim_thompson5910(35256)

Question 282670: 2x^2+2x+3=0 can you help me solve this

Click here to see answer by Alan3354(69443)

Question 282692: A track runner ran 6 meters per second one way and jogged 2 meters per second the other way. Both ways are equal in length. The total time it took the runner was 160 seconds. How long is the track?
This was a test question and i couldn't figure it out!!!
Click here to see answer by scott8148(6628)

Question 282049: (3xy)^-8/9 rewrit with positive exponents.
Click here to see answer by user_dude2008(1862)

Question 282052: -16x^2-4x+4=0
What is the value of the discriminant?
Click here to see answer by jim_thompson5910(35256)

Question 282083: Factor completely. Show all work neccessary.
x^2 - 14x + 49
Click here to see answer by jim_thompson5910(35256)

Question 282976: Divide.

A) 7b+7
B)
C)
D)
Click here to see answer by richwmiller(17219)

Question 282979: Convert to decimal notation

Is it 871000.00, or am I way off?
Click here to see answer by richwmiller(17219)

Question 282998: Factor completely.
a^2 - 24ab - 25b^2
Click here to see answer by mananth(16946)

Question 282997: Solve by factoring and using the principle of zero products.
(x-2)(x-7) = -6

Click here to see answer by DeChella(1)

Question 283001: Factor completely.
7x^2 - 56x + 112
Click here to see answer by scott8148(6628)

Question 283005: Solve by factoring and using the principle of zero products.
3x^2 + 24x = 0
Click here to see answer by nabla(475)

Question 283130: Help me solve 4x + x(x-2)=0
Click here to see answer by richwmiller(17219)

Question 283119: Bsed on this data, who would you say is a safer driver: a 16 year old, or a 70 year old?
Age Accidents per 100 Million miles driven
25 430
30 340
40 220
45 190
55 190
60 220
Explain your answer. Use the quadratic equation and graph to solve.
Click here to see answer by richwmiller(17219)

Question 283222: Simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers.

Click here to see answer by Edwin McCravy(20054)

Question 283224: Simplify by taking roots of the numerator and the denominator. Assume that all expressions under radicals represent positive numbers.

The three should be on the radical, I just couldn't figure out how to get it on there.
Click here to see answer by Alan3354(69443)

Question 283235: Factor completely.
a^5 - 625a
Click here to see answer by richwmiller(17219)

Question 283270: Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution.
A cement walk of uniform width is built around a 20 foot by 40 foot rectangular pool and the area of the walk is 700 square feet. How wide will the walk be?
Click here to see answer by richwmiller(17219)

Question 283279: Rectangular stage. One side of a rectangular stage is
2 meters longer than the other. If the diagonal is 10 meters,
then what are the lengths of the sides?
Click here to see answer by oberobic(2304)

Question 283306: 2y^(2/3)+17y^(1/3)+30=0

I don't understand how to do this problem!
Click here to see answer by richwmiller(17219)

Question 283328: 4x(x-9)-5x(x-8)=-5
Click here to see answer by mananth(16946)

Question 283328: 4x(x-9)-5x(x-8)=-5
Click here to see answer by Deina(147)

Question 283231: Factor out the largest common factor. Show all work.
36x^9y^8 + 28x^4y^5 - 32x^7y^2
Please help me to many powers are confusing me.
Click here to see answer by mananth(16946)

Question 283230: Factor completely.
-3x^3 - 6x^2 + 189x
Click here to see answer by mananth(16946)

Question 283272: Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution.
If an object is thrown upward with an initial velocity of 96 ft/sec, its height after t sec is given by h=96t - 16t^2. Find the number of seconds before the object hits the ground.
Click here to see answer by Theo(13342)

Question 283380: Factor completely.
64x^2 - 48xy + 9y^2
Click here to see answer by richwmiller(17219)

Question 283377: Factor completely.
6y^2 + 27y - 15
Click here to see answer by Deina(147)

Question 283378: Factor completely.
25y^4 - 36
Click here to see answer by nerdybill(7384)

Question 283445: I have math homework and the question says : work out which of these functions are quadratic and whether it is U shaped or the n shaped. eg: y= x squared + 7u ... how do i work this out??
Click here to see answer by richwmiller(17219)

Question 283479: Solve the equation by graphing x to the second - 8x + 7 = 0 (answer has to be a curved line)
Click here to see answer by oberobic(2304)

Question 283487: Factor
Click here to see answer by jim_thompson5910(35256)

Question 283487: Factor
Click here to see answer by richwmiller(17219)

Question 283538: how do i know whether to use the quadratic formula or graph to solve my quadratic equation?
Click here to see answer by richwmiller(17219)

Question 283583: Marvin wants to purchase a rectangular rug. it has an area of 80 square ft. he cannot remember the length and width, but he remembers that the length was 8 more than some number and the width was 8 more than the same number.
What is the quadratic eqation that can be made from the above information?
Click here to see answer by oberobic(2304)

Question 283605: How do you solve y= 3x(squared) + 6x
Click here to see answer by user_dude2008(1862)

Question 283695: ok its a max height question and im unsure of how to go about solving it.
the path of a basketball shot can be modelled by the equation h= -0.125d^2 +2.5 where h is the height of the ball and d is the horizontal distance.
find the max height
find the horizontal distance of the ball when it reaches max height
and how far from the floor is the ball when the player releases it ?
thats all thanks
Click here to see answer by stanbon(75887)

Question 283912: how do you solve g(x)= x^2+x+12 using the quadratic formula?
Click here to see answer by jim_thompson5910(35256)

Question 283865: A car travels 100km. If the car went 18km/h faster, it could have traveled 150 km in the same amount of time. What was the original speed of the car?
Click here to see answer by richwmiller(17219)

Question 284006: please show me step by step how to solve 25x^2-16=0
Click here to see answer by checkley77(12844)

Question 284042: y=5x^2
Click here to see answer by richwmiller(17219)

Question 284167: trinomial:
x^2 + 7x + 6

Click here to see answer by stanbon(75887)

Question 284169: A company's profit, in thousands of dollars, on sales of computers is modelled by the function P(x)= -2(x-3)^2+ 50, where x is in thousands of dollars, on sales of computers sold. The company's profit, in thousands of dollars, on sales of stereo systems is modelled by the function P(x) = -(x-2)(x-7), where x is in thousands of stereo sytems sold. Calculate the maximum profit the business can earn.
Click here to see answer by stanbon(75887)

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, 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, 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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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