-2x^2+5x=x^2-12

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Solution for -2x^2+5x=x^2-12 equation:


Simplifying
-2x2 + 5x = x2 + -12

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

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

Solving
5x + -2x2 = -12 + x2

Solving for variable 'x'.

Reorder the terms:
12 + 5x + -2x2 + -1x2 = -12 + x2 + 12 + -1x2

Combine like terms: -2x2 + -1x2 = -3x2
12 + 5x + -3x2 = -12 + x2 + 12 + -1x2

Reorder the terms:
12 + 5x + -3x2 = -12 + 12 + x2 + -1x2

Combine like terms: -12 + 12 = 0
12 + 5x + -3x2 = 0 + x2 + -1x2
12 + 5x + -3x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
12 + 5x + -3x2 = 0

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

Subproblem 1

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

Subproblem 2

Set the factor '(4 + 3x)' equal to zero and attempt to solve: Simplifying 4 + 3x = 0 Solving 4 + 3x = 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 + 3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3x = 0 + -4 3x = 0 + -4 Combine like terms: 0 + -4 = -4 3x = -4 Divide each side by '3'. x = -1.333333333 Simplifying x = -1.333333333

Solution

x = {3, -1.333333333}

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