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Simplifying (9 + -1w)(5w + 4) = 0 Reorder the terms: (9 + -1w)(4 + 5w) = 0 Multiply (9 + -1w) * (4 + 5w) (9(4 + 5w) + -1w * (4 + 5w)) = 0 ((4 * 9 + 5w * 9) + -1w * (4 + 5w)) = 0 ((36 + 45w) + -1w * (4 + 5w)) = 0 (36 + 45w + (4 * -1w + 5w * -1w)) = 0 (36 + 45w + (-4w + -5w2)) = 0 Combine like terms: 45w + -4w = 41w (36 + 41w + -5w2) = 0 Solving 36 + 41w + -5w2 = 0 Solving for variable 'w'. Factor a trinomial. (9 + -1w)(4 + 5w) = 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 '(4 + 5w)' equal to zero and attempt to solve: Simplifying 4 + 5w = 0 Solving 4 + 5w = 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 + 5w = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 5w = 0 + -4 5w = 0 + -4 Combine like terms: 0 + -4 = -4 5w = -4 Divide each side by '5'. w = -0.8 Simplifying w = -0.8Solution
w = {9, -0.8}
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