13x^2+78x+125=8

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Solution for 13x^2+78x+125=8 equation:


Simplifying
13x2 + 78x + 125 = 8

Reorder the terms:
125 + 78x + 13x2 = 8

Solving
125 + 78x + 13x2 = 8

Solving for variable 'x'.

Reorder the terms:
125 + -8 + 78x + 13x2 = 8 + -8

Combine like terms: 125 + -8 = 117
117 + 78x + 13x2 = 8 + -8

Combine like terms: 8 + -8 = 0
117 + 78x + 13x2 = 0

Factor out the Greatest Common Factor (GCF), '13'.
13(9 + 6x + x2) = 0

Factor a trinomial.
13((3 + x)(3 + x)) = 0

Ignore the factor 13.

Subproblem 1

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {-3, -3}

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