12x-2x^2=18

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Solution for 12x-2x^2=18 equation:


Simplifying
12x + -2x2 = 18

Solving
12x + -2x2 = 18

Solving for variable 'x'.

Reorder the terms:
-18 + 12x + -2x2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 12x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-9 + 6x + -1x2) = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 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 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Simplifying x = 3

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 = {3, 3}

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