3x^2+9x=-6

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Solution for 3x^2+9x=-6 equation:


Simplifying
3x2 + 9x = -6

Reorder the terms:
9x + 3x2 = -6

Solving
9x + 3x2 = -6

Solving for variable 'x'.

Reorder the terms:
6 + 9x + 3x2 = -6 + 6

Combine like terms: -6 + 6 = 0
6 + 9x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(2 + 3x + x2) = 0

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

Ignore the factor 3.

Subproblem 1

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Subproblem 2

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

Solution

x = {-2, -1}

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