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Simplifying 2s2 + s = 2 Reorder the terms: s + 2s2 = 2 Solving s + 2s2 = 2 Solving for variable 's'. Reorder the terms: -2 + s + 2s2 = 2 + -2 Combine like terms: 2 + -2 = 0 -2 + s + 2s2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -1 + 0.5s + s2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + 0.5s + 1 + s2 = 0 + 1 Reorder the terms: -1 + 1 + 0.5s + s2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 0.5s + s2 = 0 + 1 0.5s + s2 = 0 + 1 Combine like terms: 0 + 1 = 1 0.5s + s2 = 1 The s term is s. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.5s + 0.25 + s2 = 1 + 0.25 Reorder the terms: 0.25 + 0.5s + s2 = 1 + 0.25 Combine like terms: 1 + 0.25 = 1.25 0.25 + 0.5s + s2 = 1.25 Factor a perfect square on the left side: (s + 0.5)(s + 0.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (s + 0.5) equal to 1.118033989 and -1.118033989.Subproblem 1
s + 0.5 = 1.118033989 Simplifying s + 0.5 = 1.118033989 Reorder the terms: 0.5 + s = 1.118033989 Solving 0.5 + s = 1.118033989 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + s = 1.118033989 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + s = 1.118033989 + -0.5 s = 1.118033989 + -0.5 Combine like terms: 1.118033989 + -0.5 = 0.618033989 s = 0.618033989 Simplifying s = 0.618033989Subproblem 2
s + 0.5 = -1.118033989 Simplifying s + 0.5 = -1.118033989 Reorder the terms: 0.5 + s = -1.118033989 Solving 0.5 + s = -1.118033989 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + s = -1.118033989 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + s = -1.118033989 + -0.5 s = -1.118033989 + -0.5 Combine like terms: -1.118033989 + -0.5 = -1.618033989 s = -1.618033989 Simplifying s = -1.618033989Solution
The solution to the problem is based on the solutions from the subproblems. s = {0.618033989, -1.618033989}
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