y^2=-2y+8

Simple and best practice solution for y^2=-2y+8 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 y^2=-2y+8 equation:


Simplifying
y2 = -2y + 8

Reorder the terms:
y2 = 8 + -2y

Solving
y2 = 8 + -2y

Solving for variable 'y'.

Reorder the terms:
-8 + 2y + y2 = 8 + -2y + -8 + 2y

Reorder the terms:
-8 + 2y + y2 = 8 + -8 + -2y + 2y

Combine like terms: 8 + -8 = 0
-8 + 2y + y2 = 0 + -2y + 2y
-8 + 2y + y2 = -2y + 2y

Combine like terms: -2y + 2y = 0
-8 + 2y + y2 = 0

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

Subproblem 1

Set the factor '(-4 + -1y)' equal to zero and attempt to solve: Simplifying -4 + -1y = 0 Solving -4 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1y = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1y = 0 + 4 -1y = 0 + 4 Combine like terms: 0 + 4 = 4 -1y = 4 Divide each side by '-1'. y = -4 Simplifying y = -4

Subproblem 2

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

Solution

y = {-4, 2}

See similar equations:

| 10u+-2u= | | 4t^2-5t=0 | | 2x*2+-8x*2= | | 5c+25=85 | | 2y^3-9y^2-5y=0 | | 4ab-3a=0 | | 2a*2b*3+2a*3b*2-6a*3b*3+2a*2= | | 4ab+b=5 | | -2y*2+9y*2= | | x^2-4x+8= | | W-8+34=26+8 | | 4ln(6x)=12 | | 12x-x(-4x)= | | -7xy-9-(-4xy)= | | 122-2x=34x+22 | | -2y^2-11y=-6 | | 6(2x-3)-(5x+2)=-2(4x+1) | | 12uv-(-6w)-7uv= | | X^3-10x^2+10=0 | | 6-9x=18-16x | | 8ef+2a-5ef= | | y=3(3)-4 | | -12abc+2abc-8= | | y=-x^2-18x+90 | | -2xy+2-4xy-(-13)= | | -136-10x=7x+17 | | 7ab-6ab= | | 0.5y+4=2 | | -x^2+11x+12=0 | | 5-7x=32-28x | | 10f+6e+3e-12f= | | y=-3(1) |

Equations solver categories