12x^2-31x=-20

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Solution for 12x^2-31x=-20 equation:


Simplifying
12x2 + -31x = -20

Reorder the terms:
-31x + 12x2 = -20

Solving
-31x + 12x2 = -20

Solving for variable 'x'.

Reorder the terms:
20 + -31x + 12x2 = -20 + 20

Combine like terms: -20 + 20 = 0
20 + -31x + 12x2 = 0

Factor a trinomial.
(5 + -4x)(4 + -3x) = 0

Subproblem 1

Set the factor '(5 + -4x)' equal to zero and attempt to solve: Simplifying 5 + -4x = 0 Solving 5 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -4x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4x = 0 + -5 -4x = 0 + -5 Combine like terms: 0 + -5 = -5 -4x = -5 Divide each side by '-4'. x = 1.25 Simplifying x = 1.25

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 = {1.25, 1.333333333}

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