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

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