5 (4-k)^3 (m^2+1)^3 (2рq+3)^3
6 (10р+1)^3 (1-n^2 )^3 (3ху-2)^3
7 (2m-3n)^3 (2-р^3 )^3 (〖2х〗^2+3х)^3
8 (3m+2n)^3 (m^2+4)^3 (〖3m〗^2+m^4 )^3
9 (2х+5у)^3 (〖2m〗^2-1)^3 (〖4m〗^2+2n^2 )^3
10 (-х+10у)^3 (1+3n^3 )^3 (3р^2-3q^2 )^3