-2x^2+8=x+8

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


Simplifying
-2x2 + 8 = x + 8

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

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

Add '-8' to each side of the equation.
8 + -8 + -2x2 = 8 + -8 + x

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

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

Solving
-2x2 = x

Solving for variable 'x'.

Reorder the terms:
-1x + -2x2 = x + -1x

Combine like terms: x + -1x = 0
-1x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '-1x'.
-1x(1 + 2x) = 0

Ignore the factor -1.

Subproblem 1

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

Subproblem 2

Set the factor '(1 + 2x)' equal to zero and attempt to solve: Simplifying 1 + 2x = 0 Solving 1 + 2x = 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 + 2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2x = 0 + -1 2x = 0 + -1 Combine like terms: 0 + -1 = -1 2x = -1 Divide each side by '2'. x = -0.5 Simplifying x = -0.5

Solution

x = {0, -0.5}

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