Question

Add the expressions: p²−7pq+5pq²−q² and −3p²−2pq−2q²p+7q²

Answer 1

Step-by-step explanation:

use coulm method

p^2-7pq+5pq^2-q^2

-3p^2-2pq-2pq^2+7q^2

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-2p^2-9pq+3pq^2+6q^2