x(2x-2)=(2x+4)(x-9)

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Solution for x(2x-2)=(2x+4)(x-9) equation:


Simplifying
x(2x + -2) = (2x + 4)(x + -9)

Reorder the terms:
x(-2 + 2x) = (2x + 4)(x + -9)
(-2 * x + 2x * x) = (2x + 4)(x + -9)
(-2x + 2x2) = (2x + 4)(x + -9)

Reorder the terms:
-2x + 2x2 = (4 + 2x)(x + -9)

Reorder the terms:
-2x + 2x2 = (4 + 2x)(-9 + x)

Multiply (4 + 2x) * (-9 + x)
-2x + 2x2 = (4(-9 + x) + 2x * (-9 + x))
-2x + 2x2 = ((-9 * 4 + x * 4) + 2x * (-9 + x))
-2x + 2x2 = ((-36 + 4x) + 2x * (-9 + x))
-2x + 2x2 = (-36 + 4x + (-9 * 2x + x * 2x))
-2x + 2x2 = (-36 + 4x + (-18x + 2x2))

Combine like terms: 4x + -18x = -14x
-2x + 2x2 = (-36 + -14x + 2x2)

Add '-2x2' to each side of the equation.
-2x + 2x2 + -2x2 = -36 + -14x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-2x + 0 = -36 + -14x + 2x2 + -2x2
-2x = -36 + -14x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-2x = -36 + -14x + 0
-2x = -36 + -14x

Solving
-2x = -36 + -14x

Solving for variable 'x'.

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

Add '14x' to each side of the equation.
-2x + 14x = -36 + -14x + 14x

Combine like terms: -2x + 14x = 12x
12x = -36 + -14x + 14x

Combine like terms: -14x + 14x = 0
12x = -36 + 0
12x = -36

Divide each side by '12'.
x = -3

Simplifying
x = -3

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