Jika p=-2 q=3r=-1 a.pqr B 2p (4q-3r)

a. pqr = -2 x 3 x -1

= 6

b. 2p (4q – 3r) = 2 x -2 ( 4 (3) – 3 (-1) )

= -4 (12 +3)

= -4 x 15

= -60

mudah mudahan bener ya…