3x^2+18x+36=9

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Solution for 3x^2+18x+36=9 equation:


Simplifying
3x2 + 18x + 36 = 9

Reorder the terms:
36 + 18x + 3x2 = 9

Solving
36 + 18x + 3x2 = 9

Solving for variable 'x'.

Reorder the terms:
36 + -9 + 18x + 3x2 = 9 + -9

Combine like terms: 36 + -9 = 27
27 + 18x + 3x2 = 9 + -9

Combine like terms: 9 + -9 = 0
27 + 18x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(9 + 6x + x2) = 0

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

Ignore the factor 3.

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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