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Simplifying (w + 9)(w + -7) = 0 Reorder the terms: (9 + w)(w + -7) = 0 Reorder the terms: (9 + w)(-7 + w) = 0 Multiply (9 + w) * (-7 + w) (9(-7 + w) + w(-7 + w)) = 0 ((-7 * 9 + w * 9) + w(-7 + w)) = 0 ((-63 + 9w) + w(-7 + w)) = 0 (-63 + 9w + (-7 * w + w * w)) = 0 (-63 + 9w + (-7w + w2)) = 0 Combine like terms: 9w + -7w = 2w (-63 + 2w + w2) = 0 Solving -63 + 2w + w2 = 0 Solving for variable 'w'. Factor a trinomial. (-9 + -1w)(7 + -1w) = 0Subproblem 1
Set the factor '(-9 + -1w)' equal to zero and attempt to solve: Simplifying -9 + -1w = 0 Solving -9 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1w = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1w = 0 + 9 -1w = 0 + 9 Combine like terms: 0 + 9 = 9 -1w = 9 Divide each side by '-1'. w = -9 Simplifying w = -9Subproblem 2
Set the factor '(7 + -1w)' equal to zero and attempt to solve: Simplifying 7 + -1w = 0 Solving 7 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1w = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1w = 0 + -7 -1w = 0 + -7 Combine like terms: 0 + -7 = -7 -1w = -7 Divide each side by '-1'. w = 7 Simplifying w = 7Solution
w = {-9, 7}
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