[tex]( \frac{1}{4} x - 6)( \frac{4}{3} x - \frac{5}{4} )[/tex]
[tex] \frac{1}{4} x( \frac{4}{3} x - \frac{5}{4} ) - 6( \frac{4}{3} x - \frac{5}{4} )[/tex]
[tex] \frac{4}{12} {x}^{2} - \frac{5}{16} - \frac{24}{3} x - \frac{30}{4} [/tex]
[tex]\frac{1}{3} {x}^{2} - \frac{5}{16} - 8x - \frac{30}{4} [/tex]
[tex] \frac{1}{3x {}^{2} } - 8x - ( \frac{5}{16} + \frac{120}{16} )[/tex]
[tex] \frac{1}{3x {}^{2} } - 8x - \frac{125}{16} [/tex]
