Question

p2-2pq+q2from p2+2pq-q2​

Answer 1

Answer:

4pq - 2q^2

Step-by-step explanation:

subtract p^2 - 2pq + q^2 from p^2 + 2pq - q^2.

i.e. [p^2 + 2pq - q^2] - [p^2 - 2pq + q^2]

that becomes

P^2 + 2pq - q^2 - p^2 + 2pq - q^2

2pq + 2pq - q^2 - q^2

4pq - 2q^2

hence it is proved.