So, p(x) = (x – 1)(x² – x – 2) = (x – 1)(x² – x – 2) = (x – 1)[x² – (2 – 1)x – 2] = (x – 1)[x² – 2x + x – 2] = (x – 1)[x(x – 2) + 1(x – 2)] = (x – 1)(x – 2)(x + 1)
> CONTACT & ABUSE <