81s^2+36s=-4

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Solution for 81s^2+36s=-4 equation:


Simplifying
81s2 + 36s = -4

Reorder the terms:
36s + 81s2 = -4

Solving
36s + 81s2 = -4

Solving for variable 's'.

Reorder the terms:
4 + 36s + 81s2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + 36s + 81s2 = 0

Factor a trinomial.
(2 + 9s)(2 + 9s) = 0

Subproblem 1

Set the factor '(2 + 9s)' equal to zero and attempt to solve: Simplifying 2 + 9s = 0 Solving 2 + 9s = 0 Move all terms containing s to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 9s = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 9s = 0 + -2 9s = 0 + -2 Combine like terms: 0 + -2 = -2 9s = -2 Divide each side by '9'. s = -0.2222222222 Simplifying s = -0.2222222222

Subproblem 2

Set the factor '(2 + 9s)' equal to zero and attempt to solve: Simplifying 2 + 9s = 0 Solving 2 + 9s = 0 Move all terms containing s to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 9s = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 9s = 0 + -2 9s = 0 + -2 Combine like terms: 0 + -2 = -2 9s = -2 Divide each side by '9'. s = -0.2222222222 Simplifying s = -0.2222222222

Solution

s = {-0.2222222222, -0.2222222222}

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