4y^2-56y-128=0

Simple and best practice solution for 4y^2-56y-128=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4y^2-56y-128=0 equation:


Simplifying
4y2 + -56y + -128 = 0

Reorder the terms:
-128 + -56y + 4y2 = 0

Solving
-128 + -56y + 4y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-32 + -14y + y2) = 0

Factor a trinomial.
4((-2 + -1y)(16 + -1y)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-2 + -1y)' equal to zero and attempt to solve: Simplifying -2 + -1y = 0 Solving -2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1y = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1y = 0 + 2 -1y = 0 + 2 Combine like terms: 0 + 2 = 2 -1y = 2 Divide each side by '-1'. y = -2 Simplifying y = -2

Subproblem 2

Set the factor '(16 + -1y)' equal to zero and attempt to solve: Simplifying 16 + -1y = 0 Solving 16 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + -1y = 0 + -16 Combine like terms: 16 + -16 = 0 0 + -1y = 0 + -16 -1y = 0 + -16 Combine like terms: 0 + -16 = -16 -1y = -16 Divide each side by '-1'. y = 16 Simplifying y = 16

Solution

y = {-2, 16}

See similar equations:

| 15x^2-10x=0 | | -8=n-4 | | 990=s-12,600 | | 4-x+4x=-11 | | 0.21n=3.15-0.14n | | 78-5c+4=60c-48 | | 18x-15-4x+4=5 | | 0.333333333333x=9 | | 6x^2-19x+11=0 | | 8y+6=-11y-2+19y+8 | | (3x+2)(4x-1)=0 | | 3y=-45 | | 3=16t^2+20t+6 | | 10m+5m= | | 2(2x-3.8)=5x-7.6 | | 3x^2+27x-13=0 | | 4p+12=4 | | -0.04x=-2.8 | | 13(g+2)=78 | | 6(14x-21)=14(18x-6) | | 69(14x-21)=14(18x-6) | | 15=n-9 | | -6y=1.68 | | y=-2.9x^2-8.3 | | n-0.36=4.8 | | x+6(0)=12 | | 9x=-252 | | 3n=0.138 | | -32n-9=7n+9 | | -5x+10+x=-22 | | 4x^2+36x-81=0 | | 2c-14=3c-18 |

Equations solver categories