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Simplifying (4w + 5)(9 + -1w) = 0 Reorder the terms: (5 + 4w)(9 + -1w) = 0 Multiply (5 + 4w) * (9 + -1w) (5(9 + -1w) + 4w * (9 + -1w)) = 0 ((9 * 5 + -1w * 5) + 4w * (9 + -1w)) = 0 ((45 + -5w) + 4w * (9 + -1w)) = 0 (45 + -5w + (9 * 4w + -1w * 4w)) = 0 (45 + -5w + (36w + -4w2)) = 0 Combine like terms: -5w + 36w = 31w (45 + 31w + -4w2) = 0 Solving 45 + 31w + -4w2 = 0 Solving for variable 'w'. Factor a trinomial. (9 + -1w)(5 + 4w) = 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 '(5 + 4w)' equal to zero and attempt to solve: Simplifying 5 + 4w = 0 Solving 5 + 4w = 0 Move all terms containing w to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 4w = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 4w = 0 + -5 4w = 0 + -5 Combine like terms: 0 + -5 = -5 4w = -5 Divide each side by '4'. w = -1.25 Simplifying w = -1.25Solution
w = {9, -1.25}
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