$\int{f\left( x \right)dx}=\dfrac{{{x}^{4}}}{4}-\dfrac{3}{x}+\dfrac{{{2}^{x}}}{\ln 2}+C$

 $\int{f\left( x \right)dx}=\dfrac{{{x}^{4}}}{4}+\dfrac{3}{x}+{{2}^{x}}+C$

 $\int{f\left( x \right)dx}={{x}^{4}}-\dfrac{3}{x}+{{2}^{x}}+C$

 $\int{f\left( x \right)dx}=\dfrac{{{x}^{4}}}{4}+\dfrac{3}{x}+\dfrac{{{2}^{x}}}{\ln 2}+C$