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Simplifying (x + -3)(x + 5) = x + -7x + -15 Reorder the terms: (-3 + x)(x + 5) = x + -7x + -15 Reorder the terms: (-3 + x)(5 + x) = x + -7x + -15 Multiply (-3 + x) * (5 + x) (-3(5 + x) + x(5 + x)) = x + -7x + -15 ((5 * -3 + x * -3) + x(5 + x)) = x + -7x + -15 ((-15 + -3x) + x(5 + x)) = x + -7x + -15 (-15 + -3x + (5 * x + x * x)) = x + -7x + -15 (-15 + -3x + (5x + x2)) = x + -7x + -15 Combine like terms: -3x + 5x = 2x (-15 + 2x + x2) = x + -7x + -15 Reorder the terms: -15 + 2x + x2 = -15 + x + -7x Combine like terms: x + -7x = -6x -15 + 2x + x2 = -15 + -6x Add '15' to each side of the equation. -15 + 2x + 15 + x2 = -15 + 15 + -6x Reorder the terms: -15 + 15 + 2x + x2 = -15 + 15 + -6x Combine like terms: -15 + 15 = 0 0 + 2x + x2 = -15 + 15 + -6x 2x + x2 = -15 + 15 + -6x Combine like terms: -15 + 15 = 0 2x + x2 = 0 + -6x 2x + x2 = -6x Solving 2x + x2 = -6x Solving for variable 'x'. Reorder the terms: 2x + 6x + x2 = -6x + 6x Combine like terms: 2x + 6x = 8x 8x + x2 = -6x + 6x Combine like terms: -6x + 6x = 0 8x + x2 = 0 Factor out the Greatest Common Factor (GCF), 'x'. x(8 + x) = 0Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8Solution
x = {0, -8}
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