10s^3+42s^2-40s=0

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Solution for 10s^3+42s^2-40s=0 equation:


Simplifying
10s3 + 42s2 + -40s = 0

Reorder the terms:
-40s + 42s2 + 10s3 = 0

Solving
-40s + 42s2 + 10s3 = 0

Solving for variable 's'.

Factor out the Greatest Common Factor (GCF), '2s'.
2s(-20 + 21s + 5s2) = 0

Factor a trinomial.
2s((-5 + -1s)(4 + -5s)) = 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 '(4 + -5s)' equal to zero and attempt to solve: Simplifying 4 + -5s = 0 Solving 4 + -5s = 0 Move all terms containing s to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -5s = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5s = 0 + -4 -5s = 0 + -4 Combine like terms: 0 + -4 = -4 -5s = -4 Divide each side by '-5'. s = 0.8 Simplifying s = 0.8

Solution

s = {0, -5, 0.8}

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