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Simplifying 90 = w(2w + 3) Reorder the terms: 90 = w(3 + 2w) 90 = (3 * w + 2w * w) 90 = (3w + 2w2) Solving 90 = 3w + 2w2 Solving for variable 'w'. Reorder the terms: 90 + -3w + -2w2 = 3w + -3w + 2w2 + -2w2 Combine like terms: 3w + -3w = 0 90 + -3w + -2w2 = 0 + 2w2 + -2w2 90 + -3w + -2w2 = 2w2 + -2w2 Combine like terms: 2w2 + -2w2 = 0 90 + -3w + -2w2 = 0 Factor a trinomial. (6 + -1w)(15 + 2w) = 0Subproblem 1
Set the factor '(6 + -1w)' equal to zero and attempt to solve: Simplifying 6 + -1w = 0 Solving 6 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1w = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1w = 0 + -6 -1w = 0 + -6 Combine like terms: 0 + -6 = -6 -1w = -6 Divide each side by '-1'. w = 6 Simplifying w = 6Subproblem 2
Set the factor '(15 + 2w)' equal to zero and attempt to solve: Simplifying 15 + 2w = 0 Solving 15 + 2w = 0 Move all terms containing w to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 2w = 0 + -15 Combine like terms: 15 + -15 = 0 0 + 2w = 0 + -15 2w = 0 + -15 Combine like terms: 0 + -15 = -15 2w = -15 Divide each side by '2'. w = -7.5 Simplifying w = -7.5Solution
w = {6, -7.5}
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