The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/6c51f8f1556512032ab714f60832e051.gif" -- '\Large
x_1 = x_0 - \frac{f(2)}{f'\''(2)} = 2- \frac{4-5}{2\cdot 2}= \frac{9}{4}.
'
returned status = 126
Image not found!
Please try the debugging script