What is -2p*3q-5q*-p+3p*-2q ? Thanks in advance!
= -6pq+5qp-6pq
= -6pq+5pq-6pq
=(-6+5-6)pq
= -7pq
-2p*3q-5q*-p+3p*-2q
= -6pq- -5qp+-6pq