Question

Factorise 25(a+b)² -(a-b)²

Answer 1

Answer:

or, 25(a+b)(a+b)-(a+b)(a-b)

or, (a+b)(25a+25b-a+b)

or, (a+b)(24a+26b)

Answer 2

[5(a+b)]^2-[a-b]^2

[5(a+b)+(a-b)] [5(a+b)-(a-b)]

[5a+5b+a-b] [5a+5b-a+b]

[6a+4b] [4a+6b] Ans.✔️