Question

If p=-3,q=-1,r=3 then 3p2q+5pq2+ 2pqr

Answer 1

3(-3)*2(-1)+5(-3*-1)2+2*-3*-1*3
= -18-30+12
= -36

Answer 2

3*-3*2*-1+5*-3*-1*2+2*-1*3*-3.
18+30+18
66