(x-2)(x+4)=2x

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Solution for (x-2)(x+4)=2x equation:


Simplifying
(x + -2)(x + 4) = 2x

Reorder the terms:
(-2 + x)(x + 4) = 2x

Reorder the terms:
(-2 + x)(4 + x) = 2x

Multiply (-2 + x) * (4 + x)
(-2(4 + x) + x(4 + x)) = 2x
((4 * -2 + x * -2) + x(4 + x)) = 2x
((-8 + -2x) + x(4 + x)) = 2x
(-8 + -2x + (4 * x + x * x)) = 2x
(-8 + -2x + (4x + x2)) = 2x

Combine like terms: -2x + 4x = 2x
(-8 + 2x + x2) = 2x

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

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

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

Solving
-8 + x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + x2 = 0 + 8

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

Combine like terms: 0 + 8 = 8
x2 = 8

Simplifying
x2 = 8

Take the square root of each side:
x = {-2.828427125, 2.828427125}

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