6. Use synthetic division to completely factor y = x3 + 2x2 – 5x - 6 by x + 1.
y = (x + 1)(x + 3)(x - 2)
y = (x + 1)(x + 3)(x + 2)
y = (x + 1)(x - 3)(x + 2)
y = (x + 1)(x - 3)(x - 2)