Question

Factorise : a^2-(b-c)^2

Answer 1

Answer:

a2-(b2-c2-2bc)

a2-b2-c2+2bc

Answer 2

Answer: (a+b-c)(a-b+c)

Step-by-step explanation:

a²-(b-c)²

Let b-c be "y"

a²-y² [ using a²-b²=(a+b)(a-b) formula]

(a+y)(a-y)

{a+(b-c)}{a-(b-c)}

(a+b-c)(a-b+c)

Hope it helps!