2s^2+11s+15=0

Solution for 2s^2+11s+15=0 equation:

Simplifying
2s2 + 11s + 15 = 0

Reorder the terms:
15 + 11s + 2s2 = 0

Solving
15 + 11s + 2s2 = 0

Solving for variable 's'.

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

Subproblem 1
Set the factor '(3 + s)' equal to zero and attempt to solve:

Simplifying
3 + s = 0

Solving
3 + s = 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 + s = 0 + -3

Combine like terms: 3 + -3 = 0
0 + s = 0 + -3
s = 0 + -3

Combine like terms: 0 + -3 = -3
s = -3

Simplifying
s = -3
Subproblem 2
Set the factor '(5 + 2s)' equal to zero and attempt to solve:

Simplifying
5 + 2s = 0

Solving
5 + 2s = 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 + 2s = 0 + -5

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

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

Divide each side by '2'.
s = -2.5

Simplifying
s = -2.5
Solution
s = {-3, -2.5}