Question

x^2 - 2x - ( a +3 )(a+1) factorise​

Answer 1

SOLUTION ☺️

$= > {x}^{2} - 2x - (a + 3)(a + 1) \\ = > {x}^{2} - 2x + 1 - (a {}^{2} + 4a + 4) \\ = > (x - 1) {}^{2} - (a + 2) {}^{2} \\ = > (x - 1 + a + 2)(x - 1 - a - 2) \\ = > (x + a + 1)(x - a - 3)$

hope it helps ✔️