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Simplifying s2 + 14s + -9 = 0 Reorder the terms: -9 + 14s + s2 = 0 Solving -9 + 14s + s2 = 0 Solving for variable 's'. Begin completing the square. Move the constant term to the right: Add '9' to each side of the equation. -9 + 14s + 9 + s2 = 0 + 9 Reorder the terms: -9 + 9 + 14s + s2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 14s + s2 = 0 + 9 14s + s2 = 0 + 9 Combine like terms: 0 + 9 = 9 14s + s2 = 9 The s term is 14s. Take half its coefficient (7). Square it (49) and add it to both sides. Add '49' to each side of the equation. 14s + 49 + s2 = 9 + 49 Reorder the terms: 49 + 14s + s2 = 9 + 49 Combine like terms: 9 + 49 = 58 49 + 14s + s2 = 58 Factor a perfect square on the left side: (s + 7)(s + 7) = 58 Calculate the square root of the right side: 7.615773106 Break this problem into two subproblems by setting (s + 7) equal to 7.615773106 and -7.615773106.Subproblem 1
s + 7 = 7.615773106 Simplifying s + 7 = 7.615773106 Reorder the terms: 7 + s = 7.615773106 Solving 7 + s = 7.615773106 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + s = 7.615773106 + -7 Combine like terms: 7 + -7 = 0 0 + s = 7.615773106 + -7 s = 7.615773106 + -7 Combine like terms: 7.615773106 + -7 = 0.615773106 s = 0.615773106 Simplifying s = 0.615773106Subproblem 2
s + 7 = -7.615773106 Simplifying s + 7 = -7.615773106 Reorder the terms: 7 + s = -7.615773106 Solving 7 + s = -7.615773106 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + s = -7.615773106 + -7 Combine like terms: 7 + -7 = 0 0 + s = -7.615773106 + -7 s = -7.615773106 + -7 Combine like terms: -7.615773106 + -7 = -14.615773106 s = -14.615773106 Simplifying s = -14.615773106Solution
The solution to the problem is based on the solutions from the subproblems. s = {0.615773106, -14.615773106}
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