(9x+9)(3x-6)=0

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Solution for (9x+9)(3x-6)=0 equation:


Simplifying
(9x + 9)(3x + -6) = 0

Reorder the terms:
(9 + 9x)(3x + -6) = 0

Reorder the terms:
(9 + 9x)(-6 + 3x) = 0

Multiply (9 + 9x) * (-6 + 3x)
(9(-6 + 3x) + 9x * (-6 + 3x)) = 0
((-6 * 9 + 3x * 9) + 9x * (-6 + 3x)) = 0
((-54 + 27x) + 9x * (-6 + 3x)) = 0
(-54 + 27x + (-6 * 9x + 3x * 9x)) = 0
(-54 + 27x + (-54x + 27x2)) = 0

Combine like terms: 27x + -54x = -27x
(-54 + -27x + 27x2) = 0

Solving
-54 + -27x + 27x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '27'.
27(-2 + -1x + x2) = 0

Factor a trinomial.
27((-1 + -1x)(2 + -1x)) = 0

Ignore the factor 27.

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 '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-1, 2}

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