Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 217300: Please solve:
4x^2+8x-4=0

Click here to see answer by chibisan(131)

Question 217300: Please solve:
4x^2+8x-4=0

Click here to see answer by stanbon(57337)

Question 217305: Find the quadratic function satisfying the given conditions.
The axis of symmetry is the line x = 5. The y-intercept is 25. There is only one x-intercept.
Click here to see answer by ankor@dixie-net.com(15649)

Question 217201: find the x and y intercepts of each line and write the equation in standard form y=2/7x-1
Click here to see answer by ankor@dixie-net.com(15649)

Question 217609: a rectangular room has a permeter of 48 ft. the width is two-thirds of the length. what are the dimensions of the room?
Click here to see answer by rfer(12657)

Question 217609: a rectangular room has a permeter of 48 ft. the width is two-thirds of the length. what are the dimensions of the room?
Click here to see answer by MathTherapy(1423)

Question 217665: p2 + 13p – 30 = 0

Click here to see answer by stanbon(57337)

Question 217665: p2 + 13p – 30 = 0

Click here to see answer by MathTherapy(1423)

Question 217742: Can you please help me with quadratic equations, and the general method used for them
thanks
Click here to see answer by RAY100(1637)

Question 217731: can you tell me what 6 ordered pairs are for this problem x2+4x+4?
Click here to see answer by drj(1380)

Question 217836: What is the greatest common factor of the terms 14c2d and 42c3d?

Click here to see answer by rfer(12657)

Question 217836: What is the greatest common factor of the terms 14c2d and 42c3d?

Click here to see answer by drj(1380)

Question 218205: I need to graph these equations and determine where they meet. I am stumped
20x + 400
10x + 600
Click here to see answer by stanbon(57337)

Question 218354: solve the equation 2y^2-8y-5=0
you cant factor this out, i've tried to
im stuck on whats next, the home work says
1/2[2y^2-8y-5=0] then square both sides
why do you first use 1/2 with [2y^2-8y-5=0] ?
Click here to see answer by Alan3354(30993)

Question 218466: Solve: 4y^2 + 12y + 9 = 0
Click here to see answer by checkley77(12569)

Question 218651: Solve: (w+5)^2 = 2w^2+20w+46
Click here to see answer by chibisan(131)

Question 218978: I NEED YOUR HELP ON QUADRATIC EXPRESSION.
5X^2+17X-40
Click here to see answer by checkley77(12569)

Question 219064: I need help on quadratic factoring on the problem
45x^2-32x+3
I have already tried factoring everything and have not been able to come up with a response.
Click here to see answer by jim_thompson5910(28593)

Question 218155: the dolphin jumps out the water at a show, the function can be modeled by
f(x)=-16x^2 times 32x, which the x is the time in second. find out what is the max. height, and how long does it take to reach that height, and how long will the dolphine stay in the air before he went back into the water.
Click here to see answer by Alan3354(30993)

Question 219126: hey iv a freashman and my teacher is makeing us do a sheet a sertain way can u show me all the ways to solve (x-8=0) (6x+5=13) (67=x-65) (x-4=9) (6=x+2) (5b=145) (-4=(2/5a) (7y=28) (m/7=12) im kinda in need of help cuz she wants me to do it in a certain way and if i dont ill get all of them wrong even though i got them right so plz help
Click here to see answer by checkley77(12569)

Question 219414: how can we know if the graph of quadratic equation opens?
a. upward
b. downward
c. to the left
d. to the right

Click here to see answer by jsmallt9(3296)

Question 219414: how can we know if the graph of quadratic equation opens?
a. upward
b. downward
c. to the left
d. to the right

Click here to see answer by Theo(3460)

Question 219487: 3x^4+13x^2-10=0

Click here to see answer by Alan3354(30993)

Question 219498: What is the answer of the following problem?
2 + (3/(2+(3/(2+(3/(2+..).))))) =
Thank you for your help
Click here to see answer by jim_thompson5910(28593)

Question 219573: 4x² + 19x + 21 = 0
x= ?
x= ?
Click here to see answer by jim_thompson5910(28593)

Question 219646: Hello I was wondering if you could help me answer this problem.
converting to vertex form
y=3x^2-36x-117
thank you for your help :)
Click here to see answer by jim_thompson5910(28593)

Question 219697: -5(w-4)
Click here to see answer by user_dude2008(1861)

Question 219711: 2(7-v)-3v
Click here to see answer by checkley77(12569)

Question 220170: Solve for s.
s^2 - 7s + 10 = 0

a. (2,5)
b. (-2,-5)
c. (-1,10)
d. (10,1)
Click here to see answer by checkley77(12569)

Question 220173: Identify the coefficients that would be used in the quadratic formula for this equation. 5x^2 = 4x
a. a = 5, b = 4, c = 1
b. a = -5, b = 4, c = 0
c. a = 5, b = 4, c = 0
d. a = 5, b = -4, c = 0
Click here to see answer by Theo(3460)

Question 220168: Identify the coefficients that would be used in the quadratic formula for this equation. 5x^2 = 4x
a. a = 5, b = 4, c = 0
b. a = -5, b = 4, c = 0
c. a = 5, b = -4, c = 0
d. a = 5, b = 4, c = 1
Click here to see answer by solver91311(16877)

Question 220175: Find the solution set for N.
6n^2 + 13n + 6 = 0
a. (2/3, 3/2)
b. (2/3, -3/2)
c. (-2/3, -3/2)
d. (-2/3, 3/2)
Click here to see answer by jim_thompson5910(28593)

Question 220190: Solve c^2 - 144 = 0.

a. (-12)
b. (0,12)
c. (12)
d. (12,-12)
Click here to see answer by rfer(12657)

Question 220609: 3x^2-21x=-18
Click here to see answer by chibisan(131)

Question 220620: How to slove this Quadratic equation by completing the square: x^2+4x-8=0
Click here to see answer by rapaljer(4667)

Question 220664: Is -4x squared = 0 a quadratic equation? I am supposed to solve each quadratic equation using any technique, name the technique, and check. But I do not think this is a quadratic equation because it is not written in a form of y = ax squared + bx + c. I think to solve x would equal 0. Am I right or do I totally not understand?
Click here to see answer by stanbon(57337)

Question 220641: Sammy spends 10 Euros on some cans of drink. In another shop she sees that the same cans are each 10 cents cheaper, and she calculates that she could have brought 5 more cans for the same money. How many cans did she buy?
Click here to see answer by josmiceli(9674)

Question 220607: (x+2)^2=-16
Click here to see answer by tutor_paul(490)

Question 220696: I need help with a quadratic Equation 2x^2=90
How do i use the quadratic formula if there is no middle term?
Thank you

Click here to see answer by tutor_paul(490)

Question 220696: I need help with a quadratic Equation 2x^2=90
How do i use the quadratic formula if there is no middle term?
Thank you

Click here to see answer by jim_thompson5910(28593)

Question 220887: I don't understand how to use the formula of ax^+bx+c=0
My problem is this x^2+7x=180
I need x answered
Click here to see answer by edjones(7569)

Question 220887: I don't understand how to use the formula of ax^+bx+c=0
My problem is this x^2+7x=180
I need x answered
Click here to see answer by josmiceli(9674)

Question 220954: hi, i need help in solving an equation using the quadratic formula,
i know what the quadratic formula is but i don't know how to apply it to this particular question
the question is: 2x^2+7x = 1-2x^2
the fact that it isn't in the form x^2 + bx + c = 0 is making it hard for me solve,
at the moment i've got as far as changing the equation to 2x^2+7x - 1-2x^2=0
but i don't know whether thats right or wrong :S
thank you!
Click here to see answer by ankor@dixie-net.com(15649)

Question 220965: HAVING PROBLEMS SOLVING QUADRATIC EQUATIONS INVOLVING FRACTIONS E.G
4 OVER 2X-3 - 2 OVER X = 1 OVER NINE.
THANKS FOR YOUR HELP

Click here to see answer by drj(1380)

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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