3x^2=36-12x

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Solution for 3x^2=36-12x equation:


Simplifying
3x2 = 36 + -12x

Solving
3x2 = 36 + -12x

Solving for variable 'x'.

Reorder the terms:
-36 + 12x + 3x2 = 36 + -12x + -36 + 12x

Reorder the terms:
-36 + 12x + 3x2 = 36 + -36 + -12x + 12x

Combine like terms: 36 + -36 = 0
-36 + 12x + 3x2 = 0 + -12x + 12x
-36 + 12x + 3x2 = -12x + 12x

Combine like terms: -12x + 12x = 0
-36 + 12x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-12 + 4x + x2) = 0

Factor a trinomial.
3((-6 + -1x)(2 + -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 '(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 = {-6, 2}

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