/sci/ - Science & Math

broskys, I need your help.
I'm desperate because I have troubles with "tricky" problems.
I look at them and immediately give up, for example.
[math]\frac{3}{3-\frac{3}{x+3}}-\frac{3}{3+\frac{3}{x+3}}[/math]
It's just simplifying but I just pussy out.

Don't call me retard pls, my thing is medicine.