8s^2+34s-9=0

Solution for 8s^2+34s-9=0 equation:

Simplifying
8s2 + 34s + -9 = 0

Reorder the terms:
-9 + 34s + 8s2 = 0

Solving
-9 + 34s + 8s2 = 0

Solving for variable 's'.

Factor a trinomial.
(-9 + -2s)(1 + -4s) = 0

Subproblem 1
Set the factor '(-9 + -2s)' equal to zero and attempt to solve:

Simplifying
-9 + -2s = 0

Solving
-9 + -2s = 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 + -2s = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -2s = 0 + 9
-2s = 0 + 9

Combine like terms: 0 + 9 = 9
-2s = 9

Divide each side by '-2'.
s = -4.5

Simplifying
s = -4.5
Subproblem 2
Set the factor '(1 + -4s)' equal to zero and attempt to solve:

Simplifying
1 + -4s = 0

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

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

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

Divide each side by '-4'.
s = 0.25

Simplifying
s = 0.25
Solution
s = {-4.5, 0.25}