0=15x^2+3x-144

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Solution for 0=15x^2+3x-144 equation:


Simplifying
0 = 15x2 + 3x + -144

Reorder the terms:
0 = -144 + 3x + 15x2

Solving
0 = -144 + 3x + 15x2

Solving for variable 'x'.

Combine like terms: 0 + 144 = 144
144 + -3x + -15x2 = -144 + 3x + 15x2 + 144 + -3x + -15x2

Reorder the terms:
144 + -3x + -15x2 = -144 + 144 + 3x + -3x + 15x2 + -15x2

Combine like terms: -144 + 144 = 0
144 + -3x + -15x2 = 0 + 3x + -3x + 15x2 + -15x2
144 + -3x + -15x2 = 3x + -3x + 15x2 + -15x2

Combine like terms: 3x + -3x = 0
144 + -3x + -15x2 = 0 + 15x2 + -15x2
144 + -3x + -15x2 = 15x2 + -15x2

Combine like terms: 15x2 + -15x2 = 0
144 + -3x + -15x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(48 + -1x + -5x2) = 0

Factor a trinomial.
3((3 + -1x)(16 + 5x)) = 0

Ignore the factor 3.

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 '(16 + 5x)' equal to zero and attempt to solve: Simplifying 16 + 5x = 0 Solving 16 + 5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + 5x = 0 + -16 Combine like terms: 16 + -16 = 0 0 + 5x = 0 + -16 5x = 0 + -16 Combine like terms: 0 + -16 = -16 5x = -16 Divide each side by '5'. x = -3.2 Simplifying x = -3.2

Solution

x = {3, -3.2}

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