2s^2-7s-15=0

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Solution for 2s^2-7s-15=0 equation:


Simplifying
2s2 + -7s + -15 = 0

Reorder the terms:
-15 + -7s + 2s2 = 0

Solving
-15 + -7s + 2s2 = 0

Solving for variable 's'.

Factor a trinomial.
(-3 + -2s)(5 + -1s) = 0

Subproblem 1

Set the factor '(-3 + -2s)' equal to zero and attempt to solve: Simplifying -3 + -2s = 0 Solving -3 + -2s = 0 Move all terms containing s to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2s = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2s = 0 + 3 -2s = 0 + 3 Combine like terms: 0 + 3 = 3 -2s = 3 Divide each side by '-2'. s = -1.5 Simplifying s = -1.5

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 = {-1.5, 5}

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