1.
x^{4}+12x^{3}+54x^{2}+108x+81
2.
7776+6480c+2160c^{2}+360c^{3}+30c^{4}+c^{5}
3.
x^{4}+20x^{3}+150x^{2}+500x+625
4.
1024+1280u+640u^{2}+160u^{3}+20u^{4}+u^{5}
5.
x^{4}+8x^{3}+24x^{2}+32x+16
6.
u^{4}+4u^{3}+6u^{2}+4u+1
7.
243+405x+270x^{2}+90x^{3}+15x^{4}+x^{5}
8.
32+80x+80x^{2}+40x^{3}+10x^{4}+x^{5}
9.
3125+3125u+1250u^{2}+250u^{3}+25u^{4}+u^{5}
10.
x^{4}+16x^{3}+96x^{2}+256x+256
