Question

x cube + X - 3 x square - 3

Answer 1

hey mate
here's ur answer

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