Question

Add (1) p(p-q) , q (q-r) and (r-p)​

Answer 1

Answer:

p(p-q)+ q(q-r)+r-p

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

rearranging the terms-

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

Step-by-step explanation:

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