0=12x^2-8x-15

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Solution for 0=12x^2-8x-15 equation:


Simplifying
0 = 12x2 + -8x + -15

Reorder the terms:
0 = -15 + -8x + 12x2

Solving
0 = -15 + -8x + 12x2

Solving for variable 'x'.

Combine like terms: 0 + 15 = 15
15 + 8x + -12x2 = -15 + -8x + 12x2 + 15 + 8x + -12x2

Reorder the terms:
15 + 8x + -12x2 = -15 + 15 + -8x + 8x + 12x2 + -12x2

Combine like terms: -15 + 15 = 0
15 + 8x + -12x2 = 0 + -8x + 8x + 12x2 + -12x2
15 + 8x + -12x2 = -8x + 8x + 12x2 + -12x2

Combine like terms: -8x + 8x = 0
15 + 8x + -12x2 = 0 + 12x2 + -12x2
15 + 8x + -12x2 = 12x2 + -12x2

Combine like terms: 12x2 + -12x2 = 0
15 + 8x + -12x2 = 0

Factor a trinomial.
(3 + -2x)(5 + 6x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(5 + 6x)' equal to zero and attempt to solve: Simplifying 5 + 6x = 0 Solving 5 + 6x = 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 + 6x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 6x = 0 + -5 6x = 0 + -5 Combine like terms: 0 + -5 = -5 6x = -5 Divide each side by '6'. x = -0.8333333333 Simplifying x = -0.8333333333

Solution

x = {1.5, -0.8333333333}

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