Question

sol
$16(2p - 3q) ^{2} - 4(2p - 3q)$

Answer 1

= 16(2p - 3q)^2 - 4(2p - 3q)
= 16(4p^2 + 9q^2 - 12pq) - (8p - 12q)
= 64p^2 + 144q^2 - 192pq - 8p + 12q ans..