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Simplifying (w + -7)(w + 4) = 0 Reorder the terms: (-7 + w)(w + 4) = 0 Reorder the terms: (-7 + w)(4 + w) = 0 Multiply (-7 + w) * (4 + w) (-7(4 + w) + w(4 + w)) = 0 ((4 * -7 + w * -7) + w(4 + w)) = 0 ((-28 + -7w) + w(4 + w)) = 0 (-28 + -7w + (4 * w + w * w)) = 0 (-28 + -7w + (4w + w2)) = 0 Combine like terms: -7w + 4w = -3w (-28 + -3w + w2) = 0 Solving -28 + -3w + w2 = 0 Solving for variable 'w'. Factor a trinomial. (-4 + -1w)(7 + -1w) = 0Subproblem 1
Set the factor '(-4 + -1w)' equal to zero and attempt to solve: Simplifying -4 + -1w = 0 Solving -4 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1w = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1w = 0 + 4 -1w = 0 + 4 Combine like terms: 0 + 4 = 4 -1w = 4 Divide each side by '-1'. w = -4 Simplifying w = -4Subproblem 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 = {-4, 7}
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