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Simplifying 4s2 + -3s + -5 = 0 Reorder the terms: -5 + -3s + 4s2 = 0 Solving -5 + -3s + 4s2 = 0 Solving for variable 's'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -1.25 + -0.75s + s2 = 0 Move the constant term to the right: Add '1.25' to each side of the equation. -1.25 + -0.75s + 1.25 + s2 = 0 + 1.25 Reorder the terms: -1.25 + 1.25 + -0.75s + s2 = 0 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + -0.75s + s2 = 0 + 1.25 -0.75s + s2 = 0 + 1.25 Combine like terms: 0 + 1.25 = 1.25 -0.75s + s2 = 1.25 The s term is -0.75s. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75s + 0.140625 + s2 = 1.25 + 0.140625 Reorder the terms: 0.140625 + -0.75s + s2 = 1.25 + 0.140625 Combine like terms: 1.25 + 0.140625 = 1.390625 0.140625 + -0.75s + s2 = 1.390625 Factor a perfect square on the left side: (s + -0.375)(s + -0.375) = 1.390625 Calculate the square root of the right side: 1.179247642 Break this problem into two subproblems by setting (s + -0.375) equal to 1.179247642 and -1.179247642.Subproblem 1
s + -0.375 = 1.179247642 Simplifying s + -0.375 = 1.179247642 Reorder the terms: -0.375 + s = 1.179247642 Solving -0.375 + s = 1.179247642 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + s = 1.179247642 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + s = 1.179247642 + 0.375 s = 1.179247642 + 0.375 Combine like terms: 1.179247642 + 0.375 = 1.554247642 s = 1.554247642 Simplifying s = 1.554247642Subproblem 2
s + -0.375 = -1.179247642 Simplifying s + -0.375 = -1.179247642 Reorder the terms: -0.375 + s = -1.179247642 Solving -0.375 + s = -1.179247642 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + s = -1.179247642 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + s = -1.179247642 + 0.375 s = -1.179247642 + 0.375 Combine like terms: -1.179247642 + 0.375 = -0.804247642 s = -0.804247642 Simplifying s = -0.804247642Solution
The solution to the problem is based on the solutions from the subproblems. s = {1.554247642, -0.804247642}
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