x(2x-8)=(2x+9)(x-8)

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Solution for x(2x-8)=(2x+9)(x-8) equation:


Simplifying
x(2x + -8) = (2x + 9)(x + -8)

Reorder the terms:
x(-8 + 2x) = (2x + 9)(x + -8)
(-8 * x + 2x * x) = (2x + 9)(x + -8)
(-8x + 2x2) = (2x + 9)(x + -8)

Reorder the terms:
-8x + 2x2 = (9 + 2x)(x + -8)

Reorder the terms:
-8x + 2x2 = (9 + 2x)(-8 + x)

Multiply (9 + 2x) * (-8 + x)
-8x + 2x2 = (9(-8 + x) + 2x * (-8 + x))
-8x + 2x2 = ((-8 * 9 + x * 9) + 2x * (-8 + x))
-8x + 2x2 = ((-72 + 9x) + 2x * (-8 + x))
-8x + 2x2 = (-72 + 9x + (-8 * 2x + x * 2x))
-8x + 2x2 = (-72 + 9x + (-16x + 2x2))

Combine like terms: 9x + -16x = -7x
-8x + 2x2 = (-72 + -7x + 2x2)

Add '-2x2' to each side of the equation.
-8x + 2x2 + -2x2 = -72 + -7x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-8x + 0 = -72 + -7x + 2x2 + -2x2
-8x = -72 + -7x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-8x = -72 + -7x + 0
-8x = -72 + -7x

Solving
-8x = -72 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-8x + 7x = -72 + -7x + 7x

Combine like terms: -8x + 7x = -1x
-1x = -72 + -7x + 7x

Combine like terms: -7x + 7x = 0
-1x = -72 + 0
-1x = -72

Divide each side by '-1'.
x = 72

Simplifying
x = 72

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