Question

Simplify ( p + q+ r ) ( p- q + r ) + pq – pr​

Answer 1

Answer:

p²-q²+r² +pr + pq is the answer . I've been answered all your questions so please mark me as a brainlist and follow me on and thank me if this answer is helpful to you

Step-by-step explanation:

( p + q+ r ) ( p- q + r ) + pq – pr

multiply

p² - pq + pr + pq - q² + qr + pr - rq + r² + pq - pr

cancel like terms

p²-q²+r² +pr + pq