-x^2+4x=x^2-2x

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Solution for -x^2+4x=x^2-2x equation:


Simplifying
-1x2 + 4x = x2 + -2x

Reorder the terms:
4x + -1x2 = x2 + -2x

Reorder the terms:
4x + -1x2 = -2x + x2

Solving
4x + -1x2 = -2x + x2

Solving for variable 'x'.

Reorder the terms:
4x + 2x + -1x2 + -1x2 = -2x + x2 + 2x + -1x2

Combine like terms: 4x + 2x = 6x
6x + -1x2 + -1x2 = -2x + x2 + 2x + -1x2

Combine like terms: -1x2 + -1x2 = -2x2
6x + -2x2 = -2x + x2 + 2x + -1x2

Reorder the terms:
6x + -2x2 = -2x + 2x + x2 + -1x2

Combine like terms: -2x + 2x = 0
6x + -2x2 = 0 + x2 + -1x2
6x + -2x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
6x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2x'.
2x(3 + -1x) = 0

Ignore the factor 2.

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 '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {0, 3}

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