Question

Simplify : Subtract $3pq(p-q)$ from $2pq(p+q)$

Answer 1

$2pq(p+q)-3pq(p-q)$

$=pq(2p+2q-3p+3q)$

$=pq(5q-p)$

$=5p{q}^2-p^{2}q$