Question

(2p-q)2= ( 2p-+q) 2-8pa

Answer 1

(2p-q)2 = ( 2p-(+q) )2-8pa
4p-2q = (2p-q)2 -8pa
4p-2q = 4p-2q -8pa
4p+8pa = 4p-2q-2q
4p +8p =4p-4q
8pa+4q =4p-4p
8pa+4q =0
Answer = 8pa + 4q