Question

Solve this fast as you cn
determinants​

Answer 1

Step-by-step explanation:

$( {x}^{2} - x + 1)(x + 1) - (x - 1)(x + 1) \\ = ({x}^{3} + {x}^{2} - x - {x}^{2} + x + 1) - ( {x}^{2} - 1) \\ = ({x}^{3} + 1) - {x}^{2} + 1 \\ = {x}^{3} - {x}^{2} + 2$