-9x^2-6x-8=-7

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Solution for -9x^2-6x-8=-7 equation:


Simplifying
-9x2 + -6x + -8 = -7

Reorder the terms:
-8 + -6x + -9x2 = -7

Solving
-8 + -6x + -9x2 = -7

Solving for variable 'x'.

Reorder the terms:
-8 + 7 + -6x + -9x2 = -7 + 7

Combine like terms: -8 + 7 = -1
-1 + -6x + -9x2 = -7 + 7

Combine like terms: -7 + 7 = 0
-1 + -6x + -9x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(1 + 6x + 9x2) = 0

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

Ignore the factor -1.

Subproblem 1

Set the factor '(1 + 3x)' equal to zero and attempt to solve: Simplifying 1 + 3x = 0 Solving 1 + 3x = 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 + 3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 0 + -1 3x = 0 + -1 Combine like terms: 0 + -1 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333

Subproblem 2

Set the factor '(1 + 3x)' equal to zero and attempt to solve: Simplifying 1 + 3x = 0 Solving 1 + 3x = 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 + 3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 0 + -1 3x = 0 + -1 Combine like terms: 0 + -1 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333

Solution

x = {-0.3333333333, -0.3333333333}

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