Cube Roots of Compound Expressions.

3. ${\displaystyle \frac{2y}{x+y}}$.

4. $-{\displaystyle \frac{2ax}{a-x}}$.

5. $-{\displaystyle \frac{x+2}{x-3}}$.

6. $-{\displaystyle \frac{2x^2-6x+5}{x-2}}$.

7. ${\displaystyle \frac{x^3+x^2-2x+1}{x+2}}$.

8. ${\displaystyle \frac{2a^2-11a+6}{a-3}}$.

9. ${\displaystyle \frac{-2a^3+a^2+2a-3}{a-1}}$.

10. ${\displaystyle \frac{3a^4+6a^3-14a^2-4}{3a^2+1}}$.

[1]Exercise45.

1. ${\displaystyle \frac{x(x+a)}{(x+a)(x-a)}}$, ${\displaystyle \frac{x^2}{(x+a)(x-a)}}$.

2. ${\displaystyle \frac{a(a-b)}{(a+b)(a-b)}}$, ${\displaystyle \frac{a^2}{(a+b)(a-b)}}$.

1 − 2 a ( 1