x^2+6x+9=121

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Solution for x^2+6x+9=121 equation:


Simplifying
x2 + 6x + 9 = 121

Reorder the terms:
9 + 6x + x2 = 121

Solving
9 + 6x + x2 = 121

Solving for variable 'x'.

Reorder the terms:
9 + -121 + 6x + x2 = 121 + -121

Combine like terms: 9 + -121 = -112
-112 + 6x + x2 = 121 + -121

Combine like terms: 121 + -121 = 0
-112 + 6x + x2 = 0

Factor a trinomial.
(-14 + -1x)(8 + -1x) = 0

Subproblem 1

Set the factor '(-14 + -1x)' equal to zero and attempt to solve: Simplifying -14 + -1x = 0 Solving -14 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1x = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1x = 0 + 14 -1x = 0 + 14 Combine like terms: 0 + 14 = 14 -1x = 14 Divide each side by '-1'. x = -14 Simplifying x = -14

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {-14, 8}

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