Question

Factor 3x 2 - 15x - 42. 3(x - 2)(x - 7) 3(x - 2)(x + 7) 3(x - 7)(x + 2)

Answer 1

3*(x-7)*(x+2)
last option

Answer 2

3x^2 - 15x - 42
3(x^2 - 5x - 14)
3(x - 7)(x + 2) <==