Question

How do you factor by grouping `x^3 - x^2 + 2x - 2`?

Answer 1

Yoou can collect `x` between the first and third term and `-1` between the second and fourth to get:
`x(x^2+2)-1(x^2+2)` now collect `(x^2+2)`:
`(x^2+2)(x-1)`