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Simplifying 2(w + 5) * 5(w + 2) + 1 = 0 Reorder the terms: 2(5 + w) * 5(w + 2) + 1 = 0 Reorder the terms: 2(5 + w) * 5(2 + w) + 1 = 0 Reorder the terms for easier multiplication: 2 * 5(5 + w)(2 + w) + 1 = 0 Multiply 2 * 5 10(5 + w)(2 + w) + 1 = 0 Multiply (5 + w) * (2 + w) 10(5(2 + w) + w(2 + w)) + 1 = 0 10((2 * 5 + w * 5) + w(2 + w)) + 1 = 0 10((10 + 5w) + w(2 + w)) + 1 = 0 10(10 + 5w + (2 * w + w * w)) + 1 = 0 10(10 + 5w + (2w + w2)) + 1 = 0 Combine like terms: 5w + 2w = 7w 10(10 + 7w + w2) + 1 = 0 (10 * 10 + 7w * 10 + w2 * 10) + 1 = 0 (100 + 70w + 10w2) + 1 = 0 Reorder the terms: 100 + 1 + 70w + 10w2 = 0 Combine like terms: 100 + 1 = 101 101 + 70w + 10w2 = 0 Solving 101 + 70w + 10w2 = 0 Solving for variable 'w'. Begin completing the square. Divide all terms by 10 the coefficient of the squared term: Divide each side by '10'. 10.1 + 7w + w2 = 0.0 Move the constant term to the right: Add '-10.1' to each side of the equation. 10.1 + 7w + -10.1 + w2 = 0.0 + -10.1 Reorder the terms: 10.1 + -10.1 + 7w + w2 = 0.0 + -10.1 Combine like terms: 10.1 + -10.1 = 0.0 0.0 + 7w + w2 = 0.0 + -10.1 7w + w2 = 0.0 + -10.1 Combine like terms: 0.0 + -10.1 = -10.1 7w + w2 = -10.1 The w term is 7w. Take half its coefficient (3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. 7w + 12.25 + w2 = -10.1 + 12.25 Reorder the terms: 12.25 + 7w + w2 = -10.1 + 12.25 Combine like terms: -10.1 + 12.25 = 2.15 12.25 + 7w + w2 = 2.15 Factor a perfect square on the left side: (w + 3.5)(w + 3.5) = 2.15 Calculate the square root of the right side: 1.46628783 Break this problem into two subproblems by setting (w + 3.5) equal to 1.46628783 and -1.46628783.Subproblem 1
w + 3.5 = 1.46628783 Simplifying w + 3.5 = 1.46628783 Reorder the terms: 3.5 + w = 1.46628783 Solving 3.5 + w = 1.46628783 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + w = 1.46628783 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + w = 1.46628783 + -3.5 w = 1.46628783 + -3.5 Combine like terms: 1.46628783 + -3.5 = -2.03371217 w = -2.03371217 Simplifying w = -2.03371217Subproblem 2
w + 3.5 = -1.46628783 Simplifying w + 3.5 = -1.46628783 Reorder the terms: 3.5 + w = -1.46628783 Solving 3.5 + w = -1.46628783 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + w = -1.46628783 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + w = -1.46628783 + -3.5 w = -1.46628783 + -3.5 Combine like terms: -1.46628783 + -3.5 = -4.96628783 w = -4.96628783 Simplifying w = -4.96628783Solution
The solution to the problem is based on the solutions from the subproblems. w = {-2.03371217, -4.96628783}
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