Answer
$x^{3} - x^{2}$ + 4x -4
($x^{2}$+4) (x-1)
Work Step by Step
$x^{3} - x^{2}$ + 4x -4
$x^{2}$ (x-1) + 4 (x-1)
Factor out $x^{2}$ from the first 2 terms then factor out 4 from the last 2 terms
($x^{2}$+4) (x-1)
Combine like terms to get final answer