3x+12=2x^2-2x

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


Simplifying
3x + 12 = 2x2 + -2x

Reorder the terms:
12 + 3x = 2x2 + -2x

Reorder the terms:
12 + 3x = -2x + 2x2

Solving
12 + 3x = -2x + 2x2

Solving for variable 'x'.

Combine like terms: 3x + 2x = 5x
12 + 5x + -2x2 = -2x + 2x2 + 2x + -2x2

Reorder the terms:
12 + 5x + -2x2 = -2x + 2x + 2x2 + -2x2

Combine like terms: -2x + 2x = 0
12 + 5x + -2x2 = 0 + 2x2 + -2x2
12 + 5x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
12 + 5x + -2x2 = 0

Factor a trinomial.
(4 + -1x)(3 + 2x) = 0

Subproblem 1

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Subproblem 2

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 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 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Solution

x = {4, -1.5}

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