Question

divide the following by the method of factorisation 15pq(49p2 - 3672) = 3pq(7p - 69)
121xy2(6z - 42) - 11xy(z-7)​

Answer 1

15pq(49p²-3672)=3pq(7q-69)

735p³q-55080pq=21pq²-207pq

735p³q-55080pq+207pq=21pq²

735p3q-54873pq=21pq²

735-54873=21pq²-p³q+pq

54138/21=-p³q+pq²+pq

2578=-p³q+pq²+pq