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Simplifying w2 + -22w + 121 = 81 Reorder the terms: 121 + -22w + w2 = 81 Solving 121 + -22w + w2 = 81 Solving for variable 'w'. Reorder the terms: 121 + -81 + -22w + w2 = 81 + -81 Combine like terms: 121 + -81 = 40 40 + -22w + w2 = 81 + -81 Combine like terms: 81 + -81 = 0 40 + -22w + w2 = 0 Factor a trinomial. (2 + -1w)(20 + -1w) = 0Subproblem 1
Set the factor '(2 + -1w)' equal to zero and attempt to solve: Simplifying 2 + -1w = 0 Solving 2 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1w = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1w = 0 + -2 -1w = 0 + -2 Combine like terms: 0 + -2 = -2 -1w = -2 Divide each side by '-1'. w = 2 Simplifying w = 2Subproblem 2
Set the factor '(20 + -1w)' equal to zero and attempt to solve: Simplifying 20 + -1w = 0 Solving 20 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + -1w = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -1w = 0 + -20 -1w = 0 + -20 Combine like terms: 0 + -20 = -20 -1w = -20 Divide each side by '-1'. w = 20 Simplifying w = 20Solution
w = {2, 20}
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