Explicación paso a paso:
1)
[tex](x {}^{3} - 6x {}^{2} - 5x + 2) \div (x - 1) \\ x - 1 = 0 \\ x = 1[/tex]
2)(
[tex](x {}^{5} - 4x {}^{3} + 1 + x {}^{2} - 1 \\ x {}^{5} - 4x {}^{3} + x {}^{2} [/tex]
3)
[tex](x {}^{6} - 1) + (x {}^{2} - 1) \\ x {}^{6} - 1 + x {}^{2} - 1 \\ x {}^{6} - 2 + x {}^{2} \\ x {}^{6} + x {}^{2} - 2[/tex]
