3x^2+18x-11=154

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Solution for 3x^2+18x-11=154 equation:


Simplifying
3x2 + 18x + -11 = 154

Reorder the terms:
-11 + 18x + 3x2 = 154

Solving
-11 + 18x + 3x2 = 154

Solving for variable 'x'.

Reorder the terms:
-11 + -154 + 18x + 3x2 = 154 + -154

Combine like terms: -11 + -154 = -165
-165 + 18x + 3x2 = 154 + -154

Combine like terms: 154 + -154 = 0
-165 + 18x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-55 + 6x + x2) = 0

Factor a trinomial.
3((-11 + -1x)(5 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-11 + -1x)' equal to zero and attempt to solve: Simplifying -11 + -1x = 0 Solving -11 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1x = 0 + 11 -1x = 0 + 11 Combine like terms: 0 + 11 = 11 -1x = 11 Divide each side by '-1'. x = -11 Simplifying x = -11

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-11, 5}

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