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


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