(16x^2+88x+121)-81=0

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Solution for (16x^2+88x+121)-81=0 equation:


Simplifying
(16x2 + 88x + 121) + -81 = 0

Reorder the terms:
(121 + 88x + 16x2) + -81 = 0

Remove parenthesis around (121 + 88x + 16x2)
121 + 88x + 16x2 + -81 = 0

Reorder the terms:
121 + -81 + 88x + 16x2 = 0

Combine like terms: 121 + -81 = 40
40 + 88x + 16x2 = 0

Solving
40 + 88x + 16x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '8'.
8(5 + 11x + 2x2) = 0

Factor a trinomial.
8((5 + x)(1 + 2x)) = 0

Ignore the factor 8.

Subproblem 1

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 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 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -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 = {-5, -0.5}

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