2s^3-8s^2=90s

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Solution for 2s^3-8s^2=90s equation:


Simplifying
2s3 + -8s2 = 90s

Reorder the terms:
-8s2 + 2s3 = 90s

Solving
-8s2 + 2s3 = 90s

Solving for variable 's'.

Reorder the terms:
-90s + -8s2 + 2s3 = 90s + -90s

Combine like terms: 90s + -90s = 0
-90s + -8s2 + 2s3 = 0

Factor out the Greatest Common Factor (GCF), '2s'.
2s(-45 + -4s + s2) = 0

Factor a trinomial.
2s((-5 + -1s)(9 + -1s)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 's' equal to zero and attempt to solve: Simplifying s = 0 Solving s = 0 Move all terms containing s to the left, all other terms to the right. Simplifying s = 0

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

Subproblem 3

Set the factor '(9 + -1s)' equal to zero and attempt to solve: Simplifying 9 + -1s = 0 Solving 9 + -1s = 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 + -1s = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1s = 0 + -9 -1s = 0 + -9 Combine like terms: 0 + -9 = -9 -1s = -9 Divide each side by '-1'. s = 9 Simplifying s = 9

Solution

s = {0, -5, 9}

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