-12X^2-24X-9=0

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Solution for -12X^2-24X-9=0 equation:


Simplifying
-12X2 + -24X + -9 = 0

Reorder the terms:
-9 + -24X + -12X2 = 0

Solving
-9 + -24X + -12X2 = 0

Solving for variable 'X'.

Factor out the Greatest Common Factor (GCF), '-3'.
-3(3 + 8X + 4X2) = 0

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

Ignore the factor -3.

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 '(1 + 2X)' equal to zero and attempt to solve: Simplifying 1 + 2X = 0 Solving 1 + 2X = 0 Move all terms containing X to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2X = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2X = 0 + -1 2X = 0 + -1 Combine like terms: 0 + -1 = -1 2X = -1 Divide each side by '2'. X = -0.5 Simplifying X = -0.5

Solution

X = {-1.5, -0.5}

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