Answer:
Solution,
[tex] {x}^{2} - x - 2 \\ = {x}^{2} - (2 - 1)x - 2 \\ = {x}^{2} - 2x + x - 2 \\ = x(x - 2) + 1(x - 2) \\ = (x - 2)(x + 1)[/tex]
Hope this helps...
Good luck on your assignment..
