(3m^2+t^3)^2(k^2-5y)^2(p^3-2p^2)^2(-c^2+3x^4)^2

(3m^2+t^3)^2=81m^4+t^6 (k^2-5y)^2=k^4+25y2 (p^3-2p^2)^2=p^6+16p^4 (-c^2+3x^4)^2=c^4+6561x^8