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Simplifying (x + 2)(x + -10) = 0 Reorder the terms: (2 + x)(x + -10) = 0 Reorder the terms: (2 + x)(-10 + x) = 0 Multiply (2 + x) * (-10 + x) (2(-10 + x) + x(-10 + x)) = 0 ((-10 * 2 + x * 2) + x(-10 + x)) = 0 ((-20 + 2x) + x(-10 + x)) = 0 (-20 + 2x + (-10 * x + x * x)) = 0 (-20 + 2x + (-10x + x2)) = 0 Combine like terms: 2x + -10x = -8x (-20 + -8x + x2) = 0 Solving -20 + -8x + x2 = 0 Solving for variable 'x'. Factor a trinomial. (-2 + -1x)(10 + -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 '(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 = {-2, 10}
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