5b^2+8b-69=0

Solution for 5b^2+8b-69=0 equation:

Simplifying
5b2 + 8b + -69 = 0

Reorder the terms:
-69 + 8b + 5b2 = 0

Solving
-69 + 8b + 5b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(-23 + -5b)(3 + -1b) = 0

Subproblem 1
Set the factor '(-23 + -5b)' equal to zero and attempt to solve:

Simplifying
-23 + -5b = 0

Solving
-23 + -5b = 0

Move all terms containing b to the left, all other terms to the right.

Add '23' to each side of the equation.
-23 + 23 + -5b = 0 + 23

Combine like terms: -23 + 23 = 0
0 + -5b = 0 + 23
-5b = 0 + 23

Combine like terms: 0 + 23 = 23
-5b = 23

Divide each side by '-5'.
b = -4.6

Simplifying
b = -4.6
Subproblem 2
Set the factor '(3 + -1b)' equal to zero and attempt to solve:

Simplifying
3 + -1b = 0

Solving
3 + -1b = 0

Move all terms containing b to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -3 + -1b = 0 + -3

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

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

Divide each side by '-1'.
b = 3

Simplifying
b = 3
Solution
b = {-4.6, 3}