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Simplifying (w + 1)(2w + 3) = 102 Reorder the terms: (1 + w)(2w + 3) = 102 Reorder the terms: (1 + w)(3 + 2w) = 102 Multiply (1 + w) * (3 + 2w) (1(3 + 2w) + w(3 + 2w)) = 102 ((3 * 1 + 2w * 1) + w(3 + 2w)) = 102 ((3 + 2w) + w(3 + 2w)) = 102 (3 + 2w + (3 * w + 2w * w)) = 102 (3 + 2w + (3w + 2w2)) = 102 Combine like terms: 2w + 3w = 5w (3 + 5w + 2w2) = 102 Solving 3 + 5w + 2w2 = 102 Solving for variable 'w'. Reorder the terms: 3 + -102 + 5w + 2w2 = 102 + -102 Combine like terms: 3 + -102 = -99 -99 + 5w + 2w2 = 102 + -102 Combine like terms: 102 + -102 = 0 -99 + 5w + 2w2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -49.5 + 2.5w + w2 = 0 Move the constant term to the right: Add '49.5' to each side of the equation. -49.5 + 2.5w + 49.5 + w2 = 0 + 49.5 Reorder the terms: -49.5 + 49.5 + 2.5w + w2 = 0 + 49.5 Combine like terms: -49.5 + 49.5 = 0.0 0.0 + 2.5w + w2 = 0 + 49.5 2.5w + w2 = 0 + 49.5 Combine like terms: 0 + 49.5 = 49.5 2.5w + w2 = 49.5 The w term is 2.5w. Take half its coefficient (1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. 2.5w + 1.5625 + w2 = 49.5 + 1.5625 Reorder the terms: 1.5625 + 2.5w + w2 = 49.5 + 1.5625 Combine like terms: 49.5 + 1.5625 = 51.0625 1.5625 + 2.5w + w2 = 51.0625 Factor a perfect square on the left side: (w + 1.25)(w + 1.25) = 51.0625 Calculate the square root of the right side: 7.145802964 Break this problem into two subproblems by setting (w + 1.25) equal to 7.145802964 and -7.145802964.Subproblem 1
w + 1.25 = 7.145802964 Simplifying w + 1.25 = 7.145802964 Reorder the terms: 1.25 + w = 7.145802964 Solving 1.25 + w = 7.145802964 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + w = 7.145802964 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + w = 7.145802964 + -1.25 w = 7.145802964 + -1.25 Combine like terms: 7.145802964 + -1.25 = 5.895802964 w = 5.895802964 Simplifying w = 5.895802964Subproblem 2
w + 1.25 = -7.145802964 Simplifying w + 1.25 = -7.145802964 Reorder the terms: 1.25 + w = -7.145802964 Solving 1.25 + w = -7.145802964 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + w = -7.145802964 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + w = -7.145802964 + -1.25 w = -7.145802964 + -1.25 Combine like terms: -7.145802964 + -1.25 = -8.395802964 w = -8.395802964 Simplifying w = -8.395802964Solution
The solution to the problem is based on the solutions from the subproblems. w = {5.895802964, -8.395802964}
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