Question

Factorise x³ - x² - 4x + 4

Answer 1

Step-by-step explanation:

${x}^{3} - {x}^{2} - 4x + 4$

$= {x}^{2} (x - 1) - 4(x - 1)$

$= ( {x}^{2} - 4) \: (x - 1)$