(9x-9)(x-8)=0

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Solution for (9x-9)(x-8)=0 equation:


Simplifying
(9x + -9)(x + -8) = 0

Reorder the terms:
(-9 + 9x)(x + -8) = 0

Reorder the terms:
(-9 + 9x)(-8 + x) = 0

Multiply (-9 + 9x) * (-8 + x)
(-9(-8 + x) + 9x * (-8 + x)) = 0
((-8 * -9 + x * -9) + 9x * (-8 + x)) = 0
((72 + -9x) + 9x * (-8 + x)) = 0
(72 + -9x + (-8 * 9x + x * 9x)) = 0
(72 + -9x + (-72x + 9x2)) = 0

Combine like terms: -9x + -72x = -81x
(72 + -81x + 9x2) = 0

Solving
72 + -81x + 9x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '9'.
9(8 + -9x + x2) = 0

Factor a trinomial.
9((1 + -1x)(8 + -1x)) = 0

Ignore the factor 9.

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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