Question

what is the answer?
please tell the answer of the pin question​

Answer 1

Answer:

hope this helps

Step-by-step explanation:

(a-b)(a+b)

Answer 2

Answer:

(a²- b)² = a^4 - b²

Step-by-step explanation:

If you meant (a-b) ² it is a²+b²-2ab

If you meant a²- b² it is (a+b)(a-b)