Question

Factorise
1) a^2 + 1/a^2 -1​

Answer 1

Answer:

You can split this by using a^2-b^2 formula.

Ans) (a+b)^2-(1)^2

(a+b+1)(a+b-1) using the formula of a^2 -b^2 which is equal to (a+b)(a-b)

Answer 2

Answer:

You can split this by using a^2-b^2 formula.

Ans) (a+b)^2-(1)^2

(a+b+1)(a+b-1) using the formula of a^2 -b^2 which is equal to (a+b)(a-b)