1.
x^{4}-2x^{3}+6x^{2}-10x+5
2.
-2x^{4}-8x^{3}+6x^{2}+16x-4
3.
6x^{4}-12x^{3}-10x^{2}+12x+4
4.
x^{4}-2x^{3}+6x^{2}-6x+9
5.
-3x^{4}-9x^{3}+22x^{2}+21x-35
6.
-9x^{4}-72x^{3}+24x^{2}+48x-12
7.
30x^{4}-25x^{3}-43x^{2}+15x+15
8.
x^{4}-5x^{3}+14x^{2}-20x+40
9.
x^{4}-7x^{3}+10x^{2}-63x+9
10.
-4x^{4}-20x^{3}+14x^{2}+30x-12
