\[\frac{4x^{2}}{2x - 1} + \frac{1}{1 - 2x} - 2x - 7 =\]
\[= \frac{4x^{2}}{2x - 1} - \frac{1}{2x - 1} - (2x + 7)^{\backslash 2x - 1} =\]
\[= \frac{4x^{2} - 1 - 4x^{2} - 14x + 2x + 7}{2x - 1} =\]
\[= \frac{- 12x + 6}{2x - 1} = \frac{- 6(2x - 1)}{2x - 1} = - 6.\]
\[Ответ:\ - 6.\]