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Simplifying 25s2 + 90s = -81 Reorder the terms: 90s + 25s2 = -81 Solving 90s + 25s2 = -81 Solving for variable 's'. Reorder the terms: 81 + 90s + 25s2 = -81 + 81 Combine like terms: -81 + 81 = 0 81 + 90s + 25s2 = 0 Factor a trinomial. (9 + 5s)(9 + 5s) = 0Subproblem 1
Set the factor '(9 + 5s)' equal to zero and attempt to solve: Simplifying 9 + 5s = 0 Solving 9 + 5s = 0 Move all terms containing s to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 5s = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 5s = 0 + -9 5s = 0 + -9 Combine like terms: 0 + -9 = -9 5s = -9 Divide each side by '5'. s = -1.8 Simplifying s = -1.8Subproblem 2
Set the factor '(9 + 5s)' equal to zero and attempt to solve: Simplifying 9 + 5s = 0 Solving 9 + 5s = 0 Move all terms containing s to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 5s = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 5s = 0 + -9 5s = 0 + -9 Combine like terms: 0 + -9 = -9 5s = -9 Divide each side by '5'. s = -1.8 Simplifying s = -1.8Solution
s = {-1.8, -1.8}
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