Question

Add: p(p-q), r(r+p) and q (q-r).​

Answer 1

by solving we get p square + q square +r square -pq-qr+pr

Answer 2

Answer:

Hope it helps you!!

Step-by-step explanation:

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

=p²-pq+r²+rp+q²-qr

=p²+q²+r²-pq-qr+rp