Add: 2p(p-q),3q(q-r).7r(r-p)
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Answer:
2p²-2pq+3q²-3qr+7r²-7pr
Step-by-step explanation:
2p(p-q),3q(q-r),7r(r-p)
= 2p²-2pq+3q²-3qr+7r²-7pr
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