x(x-8)+(x-8)=0

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Solution for x(x-8)+(x-8)=0 equation:


Simplifying
x(x + -8) + (x + -8) = 0

Reorder the terms:
x(-8 + x) + (x + -8) = 0
(-8 * x + x * x) + (x + -8) = 0
(-8x + x2) + (x + -8) = 0

Reorder the terms:
-8x + x2 + (-8 + x) = 0

Remove parenthesis around (-8 + x)
-8x + x2 + -8 + x = 0

Reorder the terms:
-8 + -8x + x + x2 = 0

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

Solving
-8 + -7x + x2 = 0

Solving for variable 'x'.

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


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

Simplifying
-1 + -1x = 0

Solving
-1 + -1x = 0

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

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

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

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

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

Simplifying
x = -1

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 = {-1, 8}

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