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Simplifying (x + 11)(x + -9) = 0 Reorder the terms: (11 + x)(x + -9) = 0 Reorder the terms: (11 + x)(-9 + x) = 0 Multiply (11 + x) * (-9 + x) (11(-9 + x) + x(-9 + x)) = 0 ((-9 * 11 + x * 11) + x(-9 + x)) = 0 ((-99 + 11x) + x(-9 + x)) = 0 (-99 + 11x + (-9 * x + x * x)) = 0 (-99 + 11x + (-9x + x2)) = 0 Combine like terms: 11x + -9x = 2x (-99 + 2x + x2) = 0 Solving -99 + 2x + x2 = 0 Solving for variable 'x'. Factor a trinomial. (-11 + -1x)(9 + -1x) = 0Subproblem 1
Set the factor '(-11 + -1x)' equal to zero and attempt to solve: Simplifying -11 + -1x = 0 Solving -11 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1x = 0 + 11 -1x = 0 + 11 Combine like terms: 0 + 11 = 11 -1x = 11 Divide each side by '-1'. x = -11 Simplifying x = -11Subproblem 2
Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9Solution
x = {-11, 9}
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