\(\Leftrightarrow x^4\left(\sqrt{x+3}-2\right)+2014\left(x-1\right)=0\)
\(\Leftrightarrow x^4\cdot\frac{x-1}{\sqrt{x+3}+2}+2014\left(x-1\right)=0\)
\(\Leftrightarrow\left(x-1\right)\left(\frac{x^4}{\sqrt{x+3}+2}+2014\right)=0\)
Dễ thấy \(\left(\frac{x^4}{\sqrt{x+3}+2}+2014\right)\ne0\)
\(\Rightarrow x=1\)
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