[tex]\it \sqrt x \Rightarrow x\in \mathbb{R}_{+}[/tex]
[tex]\it D(x)<5\Rightarrow 2(\sqrt{x}-1)-3(1-\sqrt{x})<5 \Rightarrow 2\sqrt x-2-3+3\sqrt x<5 \Rightarrow \\ \\ \Rightarrow 5\sqrt x-5<5 \Rightarrow5\sqrt x<5+5 \Rightarrow5\sqrt x<10|_{:5}\Rightarrow\sqrt x<2 \Rightarrow (\sqrt x)^2<2^2\Rightarrow\\ \\ \Rightarrow x<4 \Rightarrow x \in[0,\ 4)[/tex]
