y^2-2y-8=2y-8

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Solution for y^2-2y-8=2y-8 equation:


Simplifying
y2 + -2y + -8 = 2y + -8

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

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

Add '8' to each side of the equation.
-8 + -2y + 8 + y2 = -8 + 8 + 2y

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

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

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

Solving
-2y + y2 = 2y

Solving for variable 'y'.

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

Combine like terms: -2y + -2y = -4y
-4y + y2 = 2y + -2y

Combine like terms: 2y + -2y = 0
-4y + y2 = 0

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

Subproblem 1

Set the factor 'y' equal to zero and attempt to solve: Simplifying y = 0 Solving y = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y = 0

Subproblem 2

Set the factor '(-4 + y)' equal to zero and attempt to solve: Simplifying -4 + y = 0 Solving -4 + y = 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 + y = 0 + 4 Combine like terms: -4 + 4 = 0 0 + y = 0 + 4 y = 0 + 4 Combine like terms: 0 + 4 = 4 y = 4 Simplifying y = 4

Solution

y = {0, 4}

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