18x^2-21x-114=0

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Solution for 18x^2-21x-114=0 equation:


Simplifying
18x2 + -21x + -114 = 0

Reorder the terms:
-114 + -21x + 18x2 = 0

Solving
-114 + -21x + 18x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-38 + -7x + 6x2) = 0

Factor a trinomial.
3((-2 + -1x)(19 + -6x)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

Set the factor '(19 + -6x)' equal to zero and attempt to solve: Simplifying 19 + -6x = 0 Solving 19 + -6x = 0 Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + -6x = 0 + -19 Combine like terms: 19 + -19 = 0 0 + -6x = 0 + -19 -6x = 0 + -19 Combine like terms: 0 + -19 = -19 -6x = -19 Divide each side by '-6'. x = 3.166666667 Simplifying x = 3.166666667

Solution

x = {-2, 3.166666667}

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