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Simplifying 81s2 + 72s = -16 Reorder the terms: 72s + 81s2 = -16 Solving 72s + 81s2 = -16 Solving for variable 's'. Reorder the terms: 16 + 72s + 81s2 = -16 + 16 Combine like terms: -16 + 16 = 0 16 + 72s + 81s2 = 0 Factor a trinomial. (4 + 9s)(4 + 9s) = 0Subproblem 1
Set the factor '(4 + 9s)' equal to zero and attempt to solve: Simplifying 4 + 9s = 0 Solving 4 + 9s = 0 Move all terms containing s to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 9s = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 9s = 0 + -4 9s = 0 + -4 Combine like terms: 0 + -4 = -4 9s = -4 Divide each side by '9'. s = -0.4444444444 Simplifying s = -0.4444444444Subproblem 2
Set the factor '(4 + 9s)' equal to zero and attempt to solve: Simplifying 4 + 9s = 0 Solving 4 + 9s = 0 Move all terms containing s to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 9s = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 9s = 0 + -4 9s = 0 + -4 Combine like terms: 0 + -4 = -4 9s = -4 Divide each side by '9'. s = -0.4444444444 Simplifying s = -0.4444444444Solution
s = {-0.4444444444, -0.4444444444}
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