Question

a²-(b-c)² factorise by using identity (step by step)​

Answer 1

Step-by-step explanation:

${a}^{2} - ( {b - c)}^{2}$

$= ( a + b - c)(a - b + c)$

Answer 2

$a {}^{2} – (b – c) {}^{2} \\ = a – (b – c) (a + b – c) \\ { \blue{[a {}^{2} – b {}^{2} = (a – b) (a + b)] }}\\ = (a – b + c) (a + b – c)$

Hope this helps you mate✌