Cube Roots of Compound Expressions.

14. $xy+c$.

[2]Exercise8.

2. $xy-a^2$.

3. ${\displaystyle \frac{ph}{gk}}$.

4. $6m^2+5c(d+b-a)$.

5. $5(2n+1)-6(c-a+b)$.

6. $$100-(a+b+2c)$.

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. $36x$.

21. ${\displaystyle \frac{c}{4}}$.

22. $x-1$, $x$, $x+1$.

23. $2n+3$.

[5]Exercise9.