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

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


Simplifying
-3(x + 6)(3 + -1x) = 0

Reorder the terms:
-3(6 + x)(3 + -1x) = 0

Multiply (6 + x) * (3 + -1x)
-3(6(3 + -1x) + x(3 + -1x)) = 0
-3((3 * 6 + -1x * 6) + x(3 + -1x)) = 0
-3((18 + -6x) + x(3 + -1x)) = 0
-3(18 + -6x + (3 * x + -1x * x)) = 0
-3(18 + -6x + (3x + -1x2)) = 0

Combine like terms: -6x + 3x = -3x
-3(18 + -3x + -1x2) = 0
(18 * -3 + -3x * -3 + -1x2 * -3) = 0
(-54 + 9x + 3x2) = 0

Solving
-54 + 9x + 3x2 = 0

Solving for variable 'x'.

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

Factor a trinomial.
3((-6 + -1x)(3 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6

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 = {-6, 3}

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