Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 336056: write a quadrtic equation having the given numbers as solutions
7,-4
Click here to see answer by mananth(12270)

Question 336170: Solve the equation 2x + 5 = -1/x
Click here to see answer by jim_thompson5910(28476)

Question 336173: x^2=20+8x
6x^2=5x+6
x^2+7=18

Click here to see answer by jim_thompson5910(28476)

Question 336178: x^2+7x=18
Click here to see answer by jim_thompson5910(28476)

Question 336187: x(x+5)=14
Click here to see answer by jim_thompson5910(28476)

Question 336202: (x-5)^2=16
Click here to see answer by jim_thompson5910(28476)

Question 336266: Please help solve
√7:(y^7)
Click here to see answer by jim_thompson5910(28476)

Question 336283: 7x^2-2=0 using quadratic formula. I am confused because there is no b
Click here to see answer by kshlak(4)

Question 336283: 7x^2-2=0 using quadratic formula. I am confused because there is no b
Click here to see answer by jim_thompson5910(28476)

Question 336365: solve 2x^2-2x-1=0 by any method.
Click here to see answer by jim_thompson5910(28476)

Question 336508: what is the axis of symmetry of f(x)=x2-7x-60
Click here to see answer by edjones(7569)

Question 336517: Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.
5 - 3z2 = 6z
HELP PLEASE
Click here to see answer by edjones(7569)

Question 336529: solve the following equations for x.
A)
(x)(x)/(0.500-x) = 8.30
B)
2.94=(2.00 x)2/(0.200-x)
C)
x2/0.20+x)(0.030+x) = 2.00
D)
4.00x2/(0.100-x)(0.200-x) = 1.45
Click here to see answer by edjones(7569)

Question 336596: how do i solve the quadratic expression 7n squared + 9n+ 2
Click here to see answer by mananth(12270)

Question 336512: How long would it take for a ball dropped from a 400 ft building to hit the ground?
Click here to see answer by Fombitz(13828)

Question 336556: help solving xsquared - 16x + 32=0 using quadratic formula
Click here to see answer by Fombitz(13828)

Question 336636: p^2+13p-30=0
Click here to see answer by edjones(7569)

Question 336631: x^2 - 3x + 4 = 0
Click here to see answer by jim_thompson5910(28476)

Question 336644: how do you solve the quadratic equation x squared -9x-10=0 by factoring
Click here to see answer by user_dude2008(1861)

Question 336679: 4xsquared -9=0
Click here to see answer by user_dude2008(1861)

Question 336726: How can I solve 4x^2 + 48x +104 = 0 by applying the quadratic formula?
Click here to see answer by Edwin McCravy(8879)

Question 336738: x^2+6x+160
Click here to see answer by jim_thompson5910(28476)

Question 336832: For the following eqaution, state the value of the discriminant and then describe the nature of the solutions. -8x^2-10x+2=0
Click here to see answer by jim_thompson5910(28476)

Question 337017: 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.
f(x) = -2x^2 + 2x - 9
Click here to see answer by mananth(12270)

Question 337097: how do you solve this equation
(6a-1)(5a+21)=0
Click here to see answer by Fombitz(13828)

Question 337096: how do you simplify and write this equation in standard form and then solve it
2x squared+ 50= 25x
Click here to see answer by Fombitz(13828)

Question 337113: 25y^2 + 16 = 0
Click here to see answer by Fombitz(13828)

Question 337155: how do you solve the quadratic equation 2x squared= 512
Click here to see answer by solver91311(16868)

Question 337153: how do you solve the quadratic equation 5b squared + 37b - 130=0
Click here to see answer by solver91311(16868)

Question 337156: how do you solve the quadratic equation m squared- 169= 0
Click here to see answer by solver91311(16868)

Question 337229: give exact and approximate solutions to three decimal places for:
x^2+5x-7=0
Click here to see answer by solver91311(16868)

Question 336452: what is the vertex of a parabola that is pointing downward and contains the points (-2,2), (0,1), and (1,2.5).
Click here to see answer by Fombitz(13828)

Question 337281: A Carpenter is building a rectangular room with a fixed perimeter of 192ft. What dimensions would yield the maximum area? What is the maximum area?
the length that would yield the maximum area is ________ ft.
Click here to see answer by stanbon(57214)

Question 337463: What is the sum of + ? I tried to FOIL the question but it didn't seem to work. Should I have added 9a^2 and 7a^2 then -3a and 11a and then try to divide those answers from 14?
Click here to see answer by Alan3354(30955)

Question 337494: 2(x-4)^2+x^2=x(x+50)-46x solve the equation
Click here to see answer by jim_thompson5910(28476)

Question 337531: f(x) = -3 (x-2)2 + 12 find the coordinates of the vertex for the parabola defined by the given quardratic function.
Click here to see answer by Fombitz(13828)

Question 337488: graph the quadratic equations y=(x+2)(x+2)+1
Click here to see answer by Fombitz(13828)

Question 337526: f(x) = 2(x-3)2 + 1 find the coordinates of the vertex parabola defined by the given quadaratic function.
Click here to see answer by Fombitz(13828)

Question 337652: 2x2+9x+4=0
I could really use some help with this problem
Click here to see answer by Fombitz(13828)

Question 337618: Please help me transform this in standard form and find the value of a, b and c:
x(3x-4x+5)=6
Click here to see answer by Fombitz(13828)

Question 337605: 8y²-72=0
Click here to see answer by Fombitz(13828)

Question 337510: h(x) = -(x-2)2 . How do you graph this problem
Click here to see answer by Fombitz(13828)

Question 337633: At t=0 seconds, Vikki stood on the roof of a building and threw a penny in the air. The height in feet h(t) of the ball at t seconds is given by the formula
H(t) = -16t^2 + 96t +56
a)How tall is the building (hint: t=0)
b)When is the ball at its highest point?
c)To what height does the ball travel?
d)When does the ball strike the ground?
Click here to see answer by nerdybill(6948)

Question 337287: Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)=0.5x^2-0.6x +3.659 where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?
The shop should build ______ bicycles.
Click here to see answer by nyc_function(2733)

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