3s^2-26s-9=0

Solution for 3s^2-26s-9=0 equation:

Simplifying
3s2 + -26s + -9 = 0

Reorder the terms:
-9 + -26s + 3s2 = 0

Solving
-9 + -26s + 3s2 = 0

Solving for variable 's'.

Factor a trinomial.
(-1 + -3s)(9 + -1s) = 0

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

Simplifying
-1 + -3s = 0

Solving
-1 + -3s = 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 + -3s = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3s = 0 + 1
-3s = 0 + 1

Combine like terms: 0 + 1 = 1
-3s = 1

Divide each side by '-3'.
s = -0.3333333333

Simplifying
s = -0.3333333333
Subproblem 2
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 = {-0.3333333333, 9}