Answer :
x^2+5x+6=0
(x+3)(x+2) = 0
x+3 = 0
x = -3
x+2 = 0
x = -2
Solutions: x = -3 and x = -2
(x+3)(x+2) = 0
x+3 = 0
x = -3
x+2 = 0
x = -2
Solutions: x = -3 and x = -2