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Simplifying 4w2 + 4w + 1 = 81 Reorder the terms: 1 + 4w + 4w2 = 81 Solving 1 + 4w + 4w2 = 81 Solving for variable 'w'. Reorder the terms: 1 + -81 + 4w + 4w2 = 81 + -81 Combine like terms: 1 + -81 = -80 -80 + 4w + 4w2 = 81 + -81 Combine like terms: 81 + -81 = 0 -80 + 4w + 4w2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-20 + w + w2) = 0 Factor a trinomial. 4((-5 + -1w)(4 + -1w)) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-5 + -1w)' equal to zero and attempt to solve: Simplifying -5 + -1w = 0 Solving -5 + -1w = 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 + -1w = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1w = 0 + 5 -1w = 0 + 5 Combine like terms: 0 + 5 = 5 -1w = 5 Divide each side by '-1'. w = -5 Simplifying w = -5Subproblem 2
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 = 4Solution
w = {-5, 4}
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