Find each of the following products:
(3p2 + q2) × (2p2 – 3q2)
By using horizontal method,
We have;
= (3p2 + q2) × (2p2 – 3q2)
= 3p2(2p2 – 3q2) + q2(2p2 – 3q2)
= 6p4 – 9p2q2 + 2p2q2 – 3q4
= 6p4 – 7p2q2 – 3q4