Упростить [latex] \frac{2x-5 \sqrt{x} -3}{4+4 \sqrt{x}+1 } : \frac{3- \sqrt{x} }{4x-1} [/latex]

[latex] \frac{2x-5\sqrt x -3}{4x+4 \sqrt{x}+1}:\frac{3-\sqrt{x}}{4x-1}=\frac{(\sqrt x-3)(2\sqrt x+1)}{(2\sqrt x+1)^2}*\frac{(2\sqrt x-1)(2\sqrt x+1)}{3-\sqrt x}=1-2\sqrt x\\2x-5\sqrt x-3\\\sqrt{x}_{1,2}=\frac{5^+_-7}{4}\\\sqrt x_1=3\ \ \ \sqrt x_2=-\frac{1}{2}\\\\4x+4\sqrt x+1=(2\sqrt x+1)^2[/latex]