Question

$$\frac{x^{3}+1}{4x^{2}+1}; g\cdot f^{\prime}=f\cdot g^{\prime}$$

Evaluate

$\frac{x^{3}+1}{4x^{2}+1}$

Expand

$\frac{x^{3}+1}{4x^{2}+1}$