Find both solutions for the variable b^2 + 9b + 18=0

If you would like to solve the equation b^2 + 9 * b + 18 = 0 for the variable b, you can do this using the following step:

b^2 + 9 * b + 18 = 0

(b + 3) * (b + 6) = 0

Result:

1. solution: b = - 3

2. solution: b = - 6