2s^2-5=9s

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Solution for 2s^2-5=9s equation:


Simplifying
2s2 + -5 = 9s

Reorder the terms:
-5 + 2s2 = 9s

Solving
-5 + 2s2 = 9s

Solving for variable 's'.

Reorder the terms:
-5 + -9s + 2s2 = 9s + -9s

Combine like terms: 9s + -9s = 0
-5 + -9s + 2s2 = 0

Factor a trinomial.
(-1 + -2s)(5 + -1s) = 0

Subproblem 1

Set the factor '(-1 + -2s)' equal to zero and attempt to solve: Simplifying -1 + -2s = 0 Solving -1 + -2s = 0 Move all terms containing s to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -2s = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2s = 0 + 1 -2s = 0 + 1 Combine like terms: 0 + 1 = 1 -2s = 1 Divide each side by '-2'. s = -0.5 Simplifying s = -0.5

Subproblem 2

Set the factor '(5 + -1s)' equal to zero and attempt to solve: Simplifying 5 + -1s = 0 Solving 5 + -1s = 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 + -1s = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1s = 0 + -5 -1s = 0 + -5 Combine like terms: 0 + -5 = -5 -1s = -5 Divide each side by '-1'. s = 5 Simplifying s = 5

Solution

s = {-0.5, 5}

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