\(\lim\limits_{x\rightarrow0}\dfrac{2\sqrt{x+1}-\sqrt{4-x}}{x}=\lim\limits_{x\rightarrow0}\dfrac{4\left(x+1\right)-\left(4-x\right)}{x\left(2\sqrt{x+1}+\sqrt{4-x}\right)}\)
\(=\lim\limits_{x\rightarrow0}\dfrac{5x}{x\left(2\sqrt{x+1}+\sqrt{4-x}\right)}=\lim\limits_{x\rightarrow0}\dfrac{5}{2\sqrt{x+1}+\sqrt{4-x}}=\dfrac{5}{4}\)