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Simplifying 5s2 + 8s + -10 + 16s2 + -2s + 6 + s + -2 = 0 Reorder the terms: -10 + 6 + -2 + 8s + -2s + s + 5s2 + 16s2 = 0 Combine like terms: -10 + 6 = -4 -4 + -2 + 8s + -2s + s + 5s2 + 16s2 = 0 Combine like terms: -4 + -2 = -6 -6 + 8s + -2s + s + 5s2 + 16s2 = 0 Combine like terms: 8s + -2s = 6s -6 + 6s + s + 5s2 + 16s2 = 0 Combine like terms: 6s + s = 7s -6 + 7s + 5s2 + 16s2 = 0 Combine like terms: 5s2 + 16s2 = 21s2 -6 + 7s + 21s2 = 0 Solving -6 + 7s + 21s2 = 0 Solving for variable 's'. Begin completing the square. Divide all terms by 21 the coefficient of the squared term: Divide each side by '21'. -0.2857142857 + 0.3333333333s + s2 = 0 Move the constant term to the right: Add '0.2857142857' to each side of the equation. -0.2857142857 + 0.3333333333s + 0.2857142857 + s2 = 0 + 0.2857142857 Reorder the terms: -0.2857142857 + 0.2857142857 + 0.3333333333s + s2 = 0 + 0.2857142857 Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000 0.0000000000 + 0.3333333333s + s2 = 0 + 0.2857142857 0.3333333333s + s2 = 0 + 0.2857142857 Combine like terms: 0 + 0.2857142857 = 0.2857142857 0.3333333333s + s2 = 0.2857142857 The s term is 0.3333333333s. Take half its coefficient (0.1666666667). Square it (0.02777777779) and add it to both sides. Add '0.02777777779' to each side of the equation. 0.3333333333s + 0.02777777779 + s2 = 0.2857142857 + 0.02777777779 Reorder the terms: 0.02777777779 + 0.3333333333s + s2 = 0.2857142857 + 0.02777777779 Combine like terms: 0.2857142857 + 0.02777777779 = 0.31349206349 0.02777777779 + 0.3333333333s + s2 = 0.31349206349 Factor a perfect square on the left side: (s + 0.1666666667)(s + 0.1666666667) = 0.31349206349 Calculate the square root of the right side: 0.55990362 Break this problem into two subproblems by setting (s + 0.1666666667) equal to 0.55990362 and -0.55990362.Subproblem 1
s + 0.1666666667 = 0.55990362 Simplifying s + 0.1666666667 = 0.55990362 Reorder the terms: 0.1666666667 + s = 0.55990362 Solving 0.1666666667 + s = 0.55990362 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + s = 0.55990362 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + s = 0.55990362 + -0.1666666667 s = 0.55990362 + -0.1666666667 Combine like terms: 0.55990362 + -0.1666666667 = 0.3932369533 s = 0.3932369533 Simplifying s = 0.3932369533Subproblem 2
s + 0.1666666667 = -0.55990362 Simplifying s + 0.1666666667 = -0.55990362 Reorder the terms: 0.1666666667 + s = -0.55990362 Solving 0.1666666667 + s = -0.55990362 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + s = -0.55990362 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + s = -0.55990362 + -0.1666666667 s = -0.55990362 + -0.1666666667 Combine like terms: -0.55990362 + -0.1666666667 = -0.7265702867 s = -0.7265702867 Simplifying s = -0.7265702867Solution
The solution to the problem is based on the solutions from the subproblems. s = {0.3932369533, -0.7265702867}
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