Question

please help me out no answers like I didn't got etc​

Answer 1

Step-by-step explanation:

The first 2 terms represent (a+b)(a-b)

=(9p^2-q^2) + (p^2-pq+3pq-3q^2)

=9p^2-q^2+p^2+2pq-3q^2

=10p^2+2pq-4q^2