Quote by theintarnets
3. The attempt at a solution
(log_{3}4 + log_{2}9)^{2} / (log_{3}4  log_{2}9)^{2}
(2log_{3}4 + 2log_{2}9) / (2log_{3}4  2log_{2}9)
And now I'm stuck....

You went from a minus to a divide, I think you confused it with log(a/b)= logalogb
Try using this fact a
^{2}b
^{2} = (a+b)(ab).