Question

Ex 3: ( d)
Ex 4: ( a)
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Answer 1

3. d) $\frac{x+2}{ x^{3}+8 }= \frac{x+2}{(x+2)* (x^{2}-2x+4) } = \frac{1}{ x^{2} -2x+4}$

4. a) $\frac{x}{2y}+ \frac{y}{2y}= \frac{x}{2y}+ \frac{1}{2}= \frac{x+y}{2y}$