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Simplifying (x + 5)(x + -5) = 11x + 1 Reorder the terms: (5 + x)(x + -5) = 11x + 1 Reorder the terms: (5 + x)(-5 + x) = 11x + 1 Multiply (5 + x) * (-5 + x) (5(-5 + x) + x(-5 + x)) = 11x + 1 ((-5 * 5 + x * 5) + x(-5 + x)) = 11x + 1 ((-25 + 5x) + x(-5 + x)) = 11x + 1 (-25 + 5x + (-5 * x + x * x)) = 11x + 1 (-25 + 5x + (-5x + x2)) = 11x + 1 Combine like terms: 5x + -5x = 0 (-25 + 0 + x2) = 11x + 1 (-25 + x2) = 11x + 1 Reorder the terms: -25 + x2 = 1 + 11x Solving -25 + x2 = 1 + 11x Solving for variable 'x'. Reorder the terms: -25 + -1 + -11x + x2 = 1 + 11x + -1 + -11x Combine like terms: -25 + -1 = -26 -26 + -11x + x2 = 1 + 11x + -1 + -11x Reorder the terms: -26 + -11x + x2 = 1 + -1 + 11x + -11x Combine like terms: 1 + -1 = 0 -26 + -11x + x2 = 0 + 11x + -11x -26 + -11x + x2 = 11x + -11x Combine like terms: 11x + -11x = 0 -26 + -11x + x2 = 0 Factor a trinomial. (-2 + -1x)(13 + -1x) = 0Subproblem 1
Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 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 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2Subproblem 2
Set the factor '(13 + -1x)' equal to zero and attempt to solve: Simplifying 13 + -1x = 0 Solving 13 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -1x = 0 + -13 Combine like terms: 13 + -13 = 0 0 + -1x = 0 + -13 -1x = 0 + -13 Combine like terms: 0 + -13 = -13 -1x = -13 Divide each side by '-1'. x = 13 Simplifying x = 13Solution
x = {-2, 13}
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