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Simplifying (x + 1)(x + -6) = 30 Reorder the terms: (1 + x)(x + -6) = 30 Reorder the terms: (1 + x)(-6 + x) = 30 Multiply (1 + x) * (-6 + x) (1(-6 + x) + x(-6 + x)) = 30 ((-6 * 1 + x * 1) + x(-6 + x)) = 30 ((-6 + 1x) + x(-6 + x)) = 30 (-6 + 1x + (-6 * x + x * x)) = 30 (-6 + 1x + (-6x + x2)) = 30 Combine like terms: 1x + -6x = -5x (-6 + -5x + x2) = 30 Solving -6 + -5x + x2 = 30 Solving for variable 'x'. Reorder the terms: -6 + -30 + -5x + x2 = 30 + -30 Combine like terms: -6 + -30 = -36 -36 + -5x + x2 = 30 + -30 Combine like terms: 30 + -30 = 0 -36 + -5x + x2 = 0 Factor a trinomial. (-4 + -1x)(9 + -1x) = 0Subproblem 1
Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4Subproblem 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 = {-4, 9}
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