4s^2+36s=-81

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


Simplifying
4s2 + 36s = -81

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

Solving
36s + 4s2 = -81

Solving for variable 's'.

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

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

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

Subproblem 1

Set the factor '(9 + 2s)' equal to zero and attempt to solve: Simplifying 9 + 2s = 0 Solving 9 + 2s = 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 + 2s = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 2s = 0 + -9 2s = 0 + -9 Combine like terms: 0 + -9 = -9 2s = -9 Divide each side by '2'. s = -4.5 Simplifying s = -4.5

Subproblem 2

Set the factor '(9 + 2s)' equal to zero and attempt to solve: Simplifying 9 + 2s = 0 Solving 9 + 2s = 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 + 2s = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 2s = 0 + -9 2s = 0 + -9 Combine like terms: 0 + -9 = -9 2s = -9 Divide each side by '2'. s = -4.5 Simplifying s = -4.5

Solution

s = {-4.5, -4.5}

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