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Simplifying x2 + 2x + 1 = 121 Reorder the terms: 1 + 2x + x2 = 121 Solving 1 + 2x + x2 = 121 Solving for variable 'x'. Reorder the terms: 1 + -121 + 2x + x2 = 121 + -121 Combine like terms: 1 + -121 = -120 -120 + 2x + x2 = 121 + -121 Combine like terms: 121 + -121 = 0 -120 + 2x + x2 = 0 Factor a trinomial. (-12 + -1x)(10 + -1x) = 0Subproblem 1
Set the factor '(-12 + -1x)' equal to zero and attempt to solve: Simplifying -12 + -1x = 0 Solving -12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -1x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -1x = 0 + 12 -1x = 0 + 12 Combine like terms: 0 + 12 = 12 -1x = 12 Divide each side by '-1'. x = -12 Simplifying x = -12Subproblem 2
Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10Solution
x = {-12, 10}
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