Solve the inequality x^2 + 7x + 12 < 0.
First you need to factor the left side of the inequality.
(x + 3)(x + 4) < 0
x + 3 < 0
x + 4 < 0
You can take it from there.
(x + 3)(x + 4) < 0
x + 3 < 0
x + 4 < 0
You can take it from there.