Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 303054: all it says is Solve.
3x2+28x+9=0

**3x2 means 3xsquared i dont' know how to do the square on keyboard
Click here to see answer by Edwin McCravy(8999)

Question 303082: Find a quadratic equation with the following roots: 4 and -5
Click here to see answer by nerdybill(7008)

Question 303114: Factor
Don't understand what to do
5x^2+2x=0
Click here to see answer by stanbon(57967)

Question 303150: what is the axis of symetry if the equation is two x squared plus twelve x plus nine?
Click here to see answer by Fombitz(13828)

Question 303150: what is the axis of symetry if the equation is two x squared plus twelve x plus nine?
Click here to see answer by stanbon(57967)

Question 303189: A garden is currently 4 m wide and 7 m long. If the area of the garden is doubled by increasing the width and length by the same number of meters, find the new dimensions of the garden.
Click here to see answer by scott8148(6628)

Question 303194: x4+1/x4=?
if
x=1/(8+sqrt(11))
Click here to see answer by nyc_function(2733)

Question 303155: A typical car's stopping distance on dry pavement "d" in feet can be approximated by the function

d= 0.034s2(squared) + 0.56s - 17.11. Where "s" is the speed in miles per hour, of the car before braking.

A. How fast is the car going if it requires 100 feet for the car to stop after the brakes are applied?

Click here to see answer by nerdybill(7008)

Question 303282: How do you determine the solutions of a quadratic equation? If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
Click here to see answer by Fombitz(13828)

Question 303287: To get the maximum space for 10 ft of fence, what dimensions should be used- How would this be identified using a quadratic equation?
Click here to see answer by rfer(12730)

Question 303332: d=40t-5t^2
Click here to see answer by Alan3354(31522)

Question 303397: Please solve the quadratic equation:
x^2+12x+4=0

Click here to see answer by Edwin McCravy(8999)

Question 303705: What quadratic equation would have solutions x= 2/3 and x=1/5
Click here to see answer by ankor@dixie-net.com(15746)

Question 303743: Please help me solve this problem 2x^-8x+3=0
I remember I have to divide both sides by 2 . Then use distribution. I appreciate your time.
Click here to see answer by jim_thompson5910(28715)

Question 303748: What is the maximum height of h=96t-16t power of two?
Click here to see answer by Alan3354(31522)

Question 303889: x^2-6x+11=0
Click here to see answer by checkley77(12569)

Question 303889: x^2-6x+11=0
Click here to see answer by london maths tutor(243)

Question 304001: Use the quadratic formula to determine the x-intercepts (if any) of the following function. Then evaluate the function for several values of x, and use the resulting points to graph the function. Show your work.
f(x) = -x2 + 2x - 1

Click here to see answer by richwmiller(9144)

Question 304015: How do you do a quadratic equation with the method from India. It starts off with moving the constant term to the right side of the equation and then multiplying each term by 4. In step 3 it tells you to square the co-efficient of the original x term and add it to both sides of the equation. After this point, I get lost because it asks to take the square root of both sides.

Click here to see answer by richwmiller(9144)

Question 304040: x(2)+5x+4=0
Click here to see answer by mananth(12270)

Question 304051: Please help me with this equation:
Click here to see answer by edjones(7569)

Question 304045: 7x^2+84=0
Click here to see answer by edjones(7569)

Question 304178: In which direction does the parabola for the quadratic equation y = x2 + 5x + 17 open?
Click here to see answer by jim_thompson5910(28715)

Question 304233: Construct a quadratic equation in x with solutions 4 and -2 (steps would be appreciated if possible)
Click here to see answer by london maths tutor(243)

Question 304253: the sum of the squares of two consecutive integers is 365. what are the integers.
thx
Click here to see answer by JBarnum(2044)

Question 304256: the three sides of a right triangle are consecutive even integers. what is the length of each side
ty
Click here to see answer by Alan3354(31522)

Question 304268: How do you graph a quadratic equation into a parabola?
For example: y=x^2+4x+3
Click here to see answer by stanbon(57967)

Question 304268: How do you graph a quadratic equation into a parabola?
For example: y=x^2+4x+3
Click here to see answer by Alan3354(31522)

Question 304263: (This word problems involves using the quadratic formula) The height in feet of a ball thrown off the roof of a building is given by , where t represents the time in seconds since the ball was thrown. Determine to the nearest tenth of a second the time at which the ball strikes the ground at h=0. (steps will be appreciated)
Click here to see answer by nerdybill(7008)

Question 304267: How do you graph a quadratic equation into a parabola?
For example: y=x^2+4x+3
Click here to see answer by JBarnum(2044)

Question 304338: x squared+(x-1)squared=2
Click here to see answer by checkley77(12569)

Question 304380: Please help me solve this equation: the height in feet of a golf ball that is hit from the ground can be modeled by the function f(x)=-16x^2=96, where x is the time in seconds after the ball is hit. Find the ball's maximum height and the time it takes the ball to reach this height. Then how long the ball is in the air.

* please do this by tonight! I dont understand! Thank you
Click here to see answer by richwmiller(9144)

Question 304387: " solving " a Quadratic means to ?
Click here to see answer by richwmiller(9144)

Question 304393: There are 3 main methods to solving a quadratic what are they ?
Click here to see answer by richwmiller(9144)

Question 304402: solve 8X^2=800. Is the answer X=5(radical)2/2 or X=5+or-(radical)2/2???
Click here to see answer by stanbon(57967)

Question 304400: I am trying to write an equation based on table data.
X: -2, -1, 0, 1, 2
Y: -8, -2, 0, -2, -8
Based on the differences, I know that it should be a quadratic equation, but I do not know the proper format. How do you take the data from the table to create the equation?
Click here to see answer by stanbon(57967)

Question 304414: Can u please show me the table and graph of the parabola for this equation. I don't understand how to find the axis of symmetry and how to pick the points on my graph if the vertix isnt a whole number..... here is the problem... y < 4X^2-2X+1
Click here to see answer by stanbon(57967)

Question 304425: The area of a square garden is 9xsquared-36x+36. What is the perimeter of the garden in terms of x. Show work.
Click here to see answer by mananth(12270)

Question 304465: What number would you add to the equation below to complete the square?
x2 - 11x = 0
Click here to see answer by mananth(12270)

Question 304492: one number is 3 more than another. if their product is 80, find the 2 positive numbers.
Click here to see answer by checkley77(12569)

Question 304580: I'm at a loss with this one because I am not sure if I should distribute first and then factor after moving the terms to the left to = 0 or not.
Solve. (x^2 - 2x)(x + 3) = -2x(x+1)
Click here to see answer by CharlesG2(828)

Question 304581: Any help at all with this equation would be greatly appreciated.
Solve. 3x(x+3) = 2(5x +1)
Click here to see answer by Stitch(352)

Question 304614: how do you factor 12 squared minus c plus 20 doing the AC method

Click here to see answer by stanbon(57967)

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