Question

add :p(p-q) , q(q-r) and r(r-p)

Answer 1

Answer:

(a) p(p-q), q(q-r) and r(r-p)

=p^2-pq+q^2-qr+r^2-rp

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Answer 2

Answer:

2p-pq+2q-qr+2r-pr...................