Raíces cúbicas de expresiones compuestas.

a + b + 2 c ) .

8. ${\displaystyle \frac{1}{x}}$.

9. ${\displaystyle \frac{1}{x}}+{\displaystyle \frac{1}{y}}+{\displaystyle \frac{1}{z}}$.

[1] 10. $n+(n+1)+(n+2)$; $n(n+1)(n+2)$.

[4] 11. ${\displaystyle \frac{36}{x}}$.

12. $qd$.

13. $qd+r$.

14. $2x$.

15. ${\displaystyle \frac{10x}{12}}$.

16. ${\displaystyle \frac{6a}{b}}$.

17. $4m$.

18. $x+17$.

19. $x+y+c$.

20. $36x$.