3s^2-8s-16=0

Solution for 3s^2-8s-16=0 equation:

Simplifying
3s2 + -8s + -16 = 0

Reorder the terms:
-16 + -8s + 3s2 = 0

Solving
-16 + -8s + 3s2 = 0

Solving for variable 's'.

Factor a trinomial.
(-4 + -3s)(4 + -1s) = 0

Subproblem 1
Set the factor '(-4 + -3s)' equal to zero and attempt to solve:

Simplifying
-4 + -3s = 0

Solving
-4 + -3s = 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 + -3s = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -3s = 0 + 4
-3s = 0 + 4

Combine like terms: 0 + 4 = 4
-3s = 4

Divide each side by '-3'.
s = -1.333333333

Simplifying
s = -1.333333333
Subproblem 2
Set the factor '(4 + -1s)' equal to zero and attempt to solve:

Simplifying
4 + -1s = 0

Solving
4 + -1s = 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 + -1s = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1s = 0 + -4
-1s = 0 + -4

Combine like terms: 0 + -4 = -4
-1s = -4

Divide each side by '-1'.
s = 4

Simplifying
s = 4
Solution
s = {-1.333333333, 4}