x(x-8)=4(x-8)

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Solution for x(x-8)=4(x-8) equation: 


Simplifying
x(x + -8) = 4(x + -8)

Reorder the terms:
x(-8 + x) = 4(x + -8)
(-8 * x + x * x) = 4(x + -8)
(-8x + x2) = 4(x + -8)

Reorder the terms:
-8x + x2 = 4(-8 + x)
-8x + x2 = (-8 * 4 + x * 4)
-8x + x2 = (-32 + 4x)

Solving
-8x + x2 = -32 + 4x

Solving for variable 'x'.

Reorder the terms:
32 + -8x + -4x + x2 = -32 + 4x + 32 + -4x

Combine like terms: -8x + -4x = -12x
32 + -12x + x2 = -32 + 4x + 32 + -4x

Reorder the terms:
32 + -12x + x2 = -32 + 32 + 4x + -4x

Combine like terms: -32 + 32 = 0
32 + -12x + x2 = 0 + 4x + -4x
32 + -12x + x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
32 + -12x + x2 = 0

Factor a trinomial.
(4 + -1x)(8 + -1x) = 0


Subproblem 1
Set the factor '(4 + -1x)' equal to zero and attempt to solve:

Simplifying
4 + -1x = 0

Solving
4 + -1x = 0

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

Add '-4' to each side of the equation.
4 + -4 + -1x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 0 + -4
-1x = 0 + -4

Combine like terms: 0 + -4 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4

Subproblem 2
Set the factor '(8 + -1x)' equal to zero and attempt to solve:

Simplifying
8 + -1x = 0

Solving
8 + -1x = 0

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

Add '-8' to each side of the equation.
8 + -8 + -1x = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1x = 0 + -8
-1x = 0 + -8

Combine like terms: 0 + -8 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8
Solution
x = {4, 8}

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