Question

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Answer 1

1. 5x

2. $x^{2} + x$

3. $y^{2} -x^{2}$

4. $\frac{1}{4} x^{3}$

5. $x^{2}$ · (y + z)

6. 2$\sqrt{x}$

7. $\frac{x}{x^{2} + 10 }$

8. $\frac{x^{2} - y^{2} }{4}$

9. $\frac{5}{x + y}$

10. $\frac{x + y}{x - y}$