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Simplifying 81s2 + -25 = 0 Reorder the terms: -25 + 81s2 = 0 Solving -25 + 81s2 = 0 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + 81s2 = 0 + 25 Combine like terms: -25 + 25 = 0 0 + 81s2 = 0 + 25 81s2 = 0 + 25 Combine like terms: 0 + 25 = 25 81s2 = 25 Divide each side by '81'. s2 = 0.3086419753 Simplifying s2 = 0.3086419753 Take the square root of each side: s = {-0.555555556, 0.555555556}
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