(6x-18)(3x+3)=0

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Solution for (6x-18)(3x+3)=0 equation:


Simplifying
(6x + -18)(3x + 3) = 0

Reorder the terms:
(-18 + 6x)(3x + 3) = 0

Reorder the terms:
(-18 + 6x)(3 + 3x) = 0

Multiply (-18 + 6x) * (3 + 3x)
(-18(3 + 3x) + 6x * (3 + 3x)) = 0
((3 * -18 + 3x * -18) + 6x * (3 + 3x)) = 0
((-54 + -54x) + 6x * (3 + 3x)) = 0
(-54 + -54x + (3 * 6x + 3x * 6x)) = 0
(-54 + -54x + (18x + 18x2)) = 0

Combine like terms: -54x + 18x = -36x
(-54 + -36x + 18x2) = 0

Solving
-54 + -36x + 18x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '18'.
18(-3 + -2x + x2) = 0

Factor a trinomial.
18((-1 + -1x)(3 + -1x)) = 0

Ignore the factor 18.

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 '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-1, 3}

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