TolongDijawabDongSegera

p=-1 q=1 r=-2
2p-3q+4pq-r
2(-1)-3(1)+4(-1.1)-(-2)
-2-3-4+2
-7

12pq³r² = 2².3 pq³r²
4pr³ =2² pr³
kpk = 2².3pq³r³ = 13pq³r³
fpb = 2²pr² = 4pr²