Question

(i) (xy + pq)(xy-pq)​

Answer 1

Answer:

Here is your answer

(x²y²-p²q²)

Step-by-step explanation:

using the identify

a²-b²=(a+b) (a-b)

Answer 2

STEP BY STEP EXPLAINATION:

(a+b)(a-b)=a^2-b^2

therefore,

x^2y^2 - p^2q^2