3c-9d+7c+5d
3/7+2/9
(A(x+2)-100x)*(x+2)
1/9+7/8
0=0.079V^2+1.81V-499.486
-4+3+1
a+(1/b+(1/c+(1/d)))=2008/1998
578567895656789567878
a+5(25/-14)=65
FIind a
