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Simplifying (w + -4)(w + -4) = 2w2 + -2w + 9 Reorder the terms: (-4 + w)(w + -4) = 2w2 + -2w + 9 Reorder the terms: (-4 + w)(-4 + w) = 2w2 + -2w + 9 Multiply (-4 + w) * (-4 + w) (-4(-4 + w) + w(-4 + w)) = 2w2 + -2w + 9 ((-4 * -4 + w * -4) + w(-4 + w)) = 2w2 + -2w + 9 ((16 + -4w) + w(-4 + w)) = 2w2 + -2w + 9 (16 + -4w + (-4 * w + w * w)) = 2w2 + -2w + 9 (16 + -4w + (-4w + w2)) = 2w2 + -2w + 9 Combine like terms: -4w + -4w = -8w (16 + -8w + w2) = 2w2 + -2w + 9 Reorder the terms: 16 + -8w + w2 = 9 + -2w + 2w2 Solving 16 + -8w + w2 = 9 + -2w + 2w2 Solving for variable 'w'. Reorder the terms: 16 + -9 + -8w + 2w + w2 + -2w2 = 9 + -2w + 2w2 + -9 + 2w + -2w2 Combine like terms: 16 + -9 = 7 7 + -8w + 2w + w2 + -2w2 = 9 + -2w + 2w2 + -9 + 2w + -2w2 Combine like terms: -8w + 2w = -6w 7 + -6w + w2 + -2w2 = 9 + -2w + 2w2 + -9 + 2w + -2w2 Combine like terms: w2 + -2w2 = -1w2 7 + -6w + -1w2 = 9 + -2w + 2w2 + -9 + 2w + -2w2 Reorder the terms: 7 + -6w + -1w2 = 9 + -9 + -2w + 2w + 2w2 + -2w2 Combine like terms: 9 + -9 = 0 7 + -6w + -1w2 = 0 + -2w + 2w + 2w2 + -2w2 7 + -6w + -1w2 = -2w + 2w + 2w2 + -2w2 Combine like terms: -2w + 2w = 0 7 + -6w + -1w2 = 0 + 2w2 + -2w2 7 + -6w + -1w2 = 2w2 + -2w2 Combine like terms: 2w2 + -2w2 = 0 7 + -6w + -1w2 = 0 Factor a trinomial. (1 + -1w)(7 + w) = 0Subproblem 1
Set the factor '(1 + -1w)' equal to zero and attempt to solve: Simplifying 1 + -1w = 0 Solving 1 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1w = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1w = 0 + -1 -1w = 0 + -1 Combine like terms: 0 + -1 = -1 -1w = -1 Divide each side by '-1'. w = 1 Simplifying w = 1Subproblem 2
Set the factor '(7 + w)' equal to zero and attempt to solve: Simplifying 7 + w = 0 Solving 7 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + w = 0 + -7 Combine like terms: 7 + -7 = 0 0 + w = 0 + -7 w = 0 + -7 Combine like terms: 0 + -7 = -7 w = -7 Simplifying w = -7Solution
w = {1, -7}
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