3-24. (a)* Simplify the following expression using theorems (13b), (3), and (4):
x=(M+N)(()/(bar) (M)+P)(()/(bar) (N)(+)/(b)ar (P))
(b) Simplify the following expression using theorems (13a), (8), and (6):
z()/(b)=ar (A)(B)/(b)ar (C)+A(B)/(b)ar (C)+(B)/(b)ar (C)D