\[\frac{24x^{2}}{6x - 3} - 4x^{\backslash 6x - 3} =\]
\[= \frac{24x^{2} - 24x^{2} + 12x}{6x - 3} =\]
\[= \frac{12x}{3(x - 2)} = \frac{4x}{x - 2}.\]