(3p – 4q) (2p + 7q) TOLONG DONG JAWAB PAKE CARANYA…

3p+4q 2p+7q
3p-4p 4q+7q
=1p+11q
=12pq

(3p-4q) (2p+7q) = 6p^2 + 21 pq – 8pq – 28q^2
= 6p^2 – 28q^2 + 13pq