81s^2+90s=-25

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Solution for 81s^2+90s=-25 equation:


Simplifying
81s2 + 90s = -25

Reorder the terms:
90s + 81s2 = -25

Solving
90s + 81s2 = -25

Solving for variable 's'.

Reorder the terms:
25 + 90s + 81s2 = -25 + 25

Combine like terms: -25 + 25 = 0
25 + 90s + 81s2 = 0

Factor a trinomial.
(5 + 9s)(5 + 9s) = 0

Subproblem 1

Set the factor '(5 + 9s)' equal to zero and attempt to solve: Simplifying 5 + 9s = 0 Solving 5 + 9s = 0 Move all terms containing s to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 9s = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 9s = 0 + -5 9s = 0 + -5 Combine like terms: 0 + -5 = -5 9s = -5 Divide each side by '9'. s = -0.5555555556 Simplifying s = -0.5555555556

Subproblem 2

Set the factor '(5 + 9s)' equal to zero and attempt to solve: Simplifying 5 + 9s = 0 Solving 5 + 9s = 0 Move all terms containing s to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 9s = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 9s = 0 + -5 9s = 0 + -5 Combine like terms: 0 + -5 = -5 9s = -5 Divide each side by '9'. s = -0.5555555556 Simplifying s = -0.5555555556

Solution

s = {-0.5555555556, -0.5555555556}

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