2x^2-2=-8x+8

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Solution for 2x^2-2=-8x+8 equation:


Simplifying
2x2 + -2 = -8x + 8

Reorder the terms:
-2 + 2x2 = -8x + 8

Reorder the terms:
-2 + 2x2 = 8 + -8x

Solving
-2 + 2x2 = 8 + -8x

Solving for variable 'x'.

Reorder the terms:
-2 + -8 + 8x + 2x2 = 8 + -8x + -8 + 8x

Combine like terms: -2 + -8 = -10
-10 + 8x + 2x2 = 8 + -8x + -8 + 8x

Reorder the terms:
-10 + 8x + 2x2 = 8 + -8 + -8x + 8x

Combine like terms: 8 + -8 = 0
-10 + 8x + 2x2 = 0 + -8x + 8x
-10 + 8x + 2x2 = -8x + 8x

Combine like terms: -8x + 8x = 0
-10 + 8x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-5 + 4x + x2) = 0

Factor a trinomial.
2((-5 + -1x)(1 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

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

Solution

x = {-5, 1}

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