Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 86122: Find the axis of symmetry...
1. y=-x^2+4x+2
2. y=x^2+x+1
Find the x-intercepts...
1.y=x^2+2x-8
2. y=x^2-5x-10
Click here to see answer by jim_thompson5910(28595)

Question 86121: Solve by completing the square...
1.x^2+4x+3=0
2.x^2=5x+2
3.2x^2-8x-9=0
4.4x^2+2x-3=0
Thanks in advance for all of your help!!!
Click here to see answer by Earlsdon(6287)

Question 86180: Suppose you travel north for 65 kilometers then travel east 75 kilometers. How far are you from your stating point?
Click here to see answer by psbhowmick(529)

Question 86180: Suppose you travel north for 65 kilometers then travel east 75 kilometers. How far are you from your stating point?
Click here to see answer by ptaylor(2048)

Question 86186: for the function y= 1/x-2 give the values y for x = -1,0,1,2,3,4
please show work to help me understand this problem
using these points draw a curve
Click here to see answer by stanbon(57348)

Question 86185: Need some serious help here.
for the function y= 1/x-2 give the values for x = -1,0,1,2,3,4
Must show work
use these points to draw a curve
Click here to see answer by Earlsdon(6287)

Question 86179: x-[3x-2(9-x)-x} < x-(5-x)

Click here to see answer by scianci(186)

Question 86206: A right triangle is a triangle with one angle measuring 90°. In a right triangle, the lengths of the sides are related by the Pythagorean Theorem, , where c is the length of the hypotenuse (the side opposite the 90° angle). Find the length of the hypotenuse when the other two sides’ measurements are 6 feet and 8 feet.

Click here to see answer by ptaylor(2048)

Question 86202: p-(3p-1)+12>-2(p+4)-12
Click here to see answer by ptaylor(2048)

Question 86215: x-[3x-2(9-x)-x}
Click here to see answer by stanbon(57348)

Question 86214: 0.03c-0.1 = 1.4c+9
Click here to see answer by stanbon(57348)

Question 86226: 8-[3-2(9-7)-12]-11=
Click here to see answer by sofiyacherni(99)

Question 86213: 4-3(2b+4) = 6-2(3b-1)
Click here to see answer by checkley75(3666)

Question 86205: 0.03c-0.1 = 1.4c+9
Click here to see answer by checkley75(3666)

Question 86256: 8-[3-2(9-7)-12]-11=
simplify by using order of operations, I am confused any help I will deeply appriciate
Click here to see answer by dolly(163)

Question 86210: For the equation x - 2 square root x = 0 , perform the following:
a) Solve for all values of x that satisfies the equation.
Answer:
Show work
b) Graph the functions y = x and y = 2 square root X, on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.
Graph:
Thanks in advance for any help. I can't figure this one out at all.

Click here to see answer by dolly(163)

Question 86274: The height h in feet of an object after t seconds is given by the function h=-16t^2+60t+9....
How long will it take the object to hit the ground? Round your answer to the nearest thousandth....
Click here to see answer by stanbon(57348)

Question 86273: Find the axis of symmetry...
1. y=-x^2+4x+2
Find the x-intercepts...
1. y=x^2+2x-8
The length of a rectangle is 3cm more than 2 times its width. If the area of the rectangle is 99cm^2, find the dimensions of the rectangle to the nearest thousandth.
Click here to see answer by stanbon(57348)

Question 86271: Solve by using the quadratic formula...
1. x^2-x-2=0
2. x^2=3x+12
3. 4x^2-3x+3=0
4. 5x^2-7x=1
5. 3x^2=11x+4

Click here to see answer by scianci(186)

Question 86270: Thanks in advance for all of your help!!
Solve by completing the square...
1. +4x+3=0
2. =5x+2
3. 2-8x-9=0
4. 4+2x-3=0
Click here to see answer by scianci(186)

Question 86269: Please Help!!!
Solve...
1. -9(x-3)^2=-7
2. (x+4^2=3
3. 5(x-2)^2=3
Thanks In advance!!!
Click here to see answer by scianci(186)

Question 86343: evaluate if x=3 y=-6 and z= 1/2
8z-y+12x
Any help will be appriciated
Click here to see answer by checkley75(3666)

Question 86360: p-(3p-1) + 12> -2 (p+4) -12
Please help a dummy
p-3p+1+12>-2p-8-12
-2p+13>-2p-20
13>-20 is the solution

Click here to see answer by praseenakos@yahoo.com(507)

Question 86361: Evaluate if a=-3 b= 3/4 c=-1/2
c-a / b-c
Divided = / -1/2-(-3)=c-a
3/4-(-1/2)=b-c
-1/2+3=5/2
3/4+1/2=5/4
5/2/5/4 = 5/2.4/5
= 2
Click here to see answer by chitra(359)

Question 86361: Evaluate if a=-3 b= 3/4 c=-1/2
c-a / b-c
Divided = / -1/2-(-3)=c-a
3/4-(-1/2)=b-c
-1/2+3=5/2
3/4+1/2=5/4
5/2/5/4 = 5/2.4/5
= 2
Click here to see answer by praseenakos@yahoo.com(507)

Question 86359: 2+3[4+2(b-1)] > 2b-7
Click here to see answer by praseenakos@yahoo.com(507)

Question 86359: 2+3[4+2(b-1)] > 2b-7
Click here to see answer by jayanthihemkos@yahoo.com(87)

Question 86359: 2+3[4+2(b-1)] > 2b-7
Click here to see answer by chitra(359)

Question 86250: 0.03c-0.1 = 1.4c+9
0.03c-1.4c=9+0.1
-1.37c=9.1
c=9.1/-1.37 c=-9.1/1.37
Click here to see answer by praseenakos@yahoo.com(507)

Question 86373: x-[3x-2(9-x)]-1< x-(5-x)
Please help me I am mathematically challenged!!
Click here to see answer by Edwin McCravy(8909)

Question 86414: Please help! I am stuck on this quadratic equation!
The original equation reads like this: 2x^2+10x+11=0.
Thank you! Your help is greatly appreciated!
Click here to see answer by checkley75(3666)

Question 86375: 3x-4(2x-3) > 5-(4-7x)
Click here to see answer by tutorcecilia(2152)

Question 86430: I have to solve this equation by completing the square, and I'm a bit stumped. Any help would be greatly appreciated!
2x^2+10x+11=0
Thank you!

Click here to see answer by jim_thompson5910(28595)

Question 86441: Hello,
I am unsure if I have the correct answer for this problem
solve by the quadratic formula
6x^2=x+2
my answer {49/12}
Thank you for your help

Click here to see answer by scianci(186)

Question 86502: Solve...
1. 9x^2=14
2. x^2+8=17
Click here to see answer by tutorcecilia(2152)

Question 86497: Can you help me with this? It is so confusing on how to get the answer. Thank you.
x^2 - 3x = -6 - 1
Click here to see answer by checkley75(3666)

Question 86496: Can you help me break this down and solve? Thank you so much.
x^2 - 3x = -6x - 1
Click here to see answer by checkley75(3666)

Question 86539: Can you help me double check this using the quad formula?:
x^2 - 10 - 1 = -10
Click here to see answer by praseenakos@yahoo.com(507)

Question 86631: can you help with this quadratic equation
4x2 - 16 = 0
Click here to see answer by dolly(163)

Question 86632: x2 + 5x - 6 = 0

Click here to see answer by dolly(163)

Question 86636: Can you explain to me how to work this problem? I really appreciate all of your help:
(x + 5)^2 - 3 = 0
Click here to see answer by tutorcecilia(2152)

Question 86636: Can you explain to me how to work this problem? I really appreciate all of your help:
(x + 5)^2 - 3 = 0
Click here to see answer by Nate(3500)

Question 86671: saquare root of 144 + 3[8+7)2-3)]= I can't seem to get the right answer which is 15
Click here to see answer by tutorcecilia(2152)

Question 86672: square root of 144 + 3[8+7(2-3)]= I can't seem to get the right answer which is 15
Click here to see answer by bucky(2189)

Question 86408: Solve by using the quadratic formula...
1. 2x^2-7x=5
Solve...
1. x^2+10x+16=0
The demand and supply equations for a certain item are given by D=-5p+40/S=-p^2+30p-8..Find the equilibirum price...
Find the axis of symmetry...
1. y=x^2-7x+2

Click here to see answer by ankor@dixie-net.com(15652)

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