Which of the following is the expression obtained by the division of 5pq(p2−q2) by 2p(p+q)?
When 5pq(p2−q2) is divided by 2p(p+q) and substituting p=3, q=1 the value obtained is _______ .
When 5pq(p2−q2) is divided by 2p(p+q) and substituting p=3,q=1, the value obtained is: