(9x-3)(x+2)=

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Solution for (9x-3)(x+2)= equation:


Simplifying
(9x + -3)(x + 2) = 0

Reorder the terms:
(-3 + 9x)(x + 2) = 0

Reorder the terms:
(-3 + 9x)(2 + x) = 0

Multiply (-3 + 9x) * (2 + x)
(-3(2 + x) + 9x * (2 + x)) = 0
((2 * -3 + x * -3) + 9x * (2 + x)) = 0
((-6 + -3x) + 9x * (2 + x)) = 0
(-6 + -3x + (2 * 9x + x * 9x)) = 0
(-6 + -3x + (18x + 9x2)) = 0

Combine like terms: -3x + 18x = 15x
(-6 + 15x + 9x2) = 0

Solving
-6 + 15x + 9x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-2 + 5x + 3x2) = 0

Factor a trinomial.
3((-2 + -1x)(1 + -3x)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 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 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Solution

x = {-2, 0.3333333333}

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