Identifique a forma fatorada da equação 3x2 + 6x – 45 = 0
(x – 3)(x + 5) = 0
3(x + 3)(x + 5) = 0
(x – 3)(x – 5) = 0
6(x + 3)(x – 5) = 0
3(x – 3)(x + 5) = 0