Question

Factorise the following

Answer 1

use this formula
${x}^{2} - {y}^{2} = (x + y)(x - y) \\ \\ similarly \: here \\ \\ {a}^{2} - {(b - c)}^{2} = (a + b - c)(a - b + c)$
hope it will help you

Answer 2

✌⭐HOPE IT HELPS YOU A LOT⭐✌