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Simplifying (x + -5)(x + 3) = -7 Reorder the terms: (-5 + x)(x + 3) = -7 Reorder the terms: (-5 + x)(3 + x) = -7 Multiply (-5 + x) * (3 + x) (-5(3 + x) + x(3 + x)) = -7 ((3 * -5 + x * -5) + x(3 + x)) = -7 ((-15 + -5x) + x(3 + x)) = -7 (-15 + -5x + (3 * x + x * x)) = -7 (-15 + -5x + (3x + x2)) = -7 Combine like terms: -5x + 3x = -2x (-15 + -2x + x2) = -7 Solving -15 + -2x + x2 = -7 Solving for variable 'x'. Reorder the terms: -15 + 7 + -2x + x2 = -7 + 7 Combine like terms: -15 + 7 = -8 -8 + -2x + x2 = -7 + 7 Combine like terms: -7 + 7 = 0 -8 + -2x + x2 = 0 Factor a trinomial. (-2 + -1x)(4 + -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 '(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 = 4Solution
x = {-2, 4}
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