Question

Factorize using suitable groupings:
(a) pqr - pq - r + 1
(d) x2 + xy + 8x + 8y​

Answer 1

Answer:

pq(r-1)-1(r-1)

(pq-1) (r-1)

Answer 2

Answer:

a.) pq(r-1)-1(r-1)

b.) (pq-1)(r-1)

hope it helps!