12 . (−3a) . (− 4b) = A.  0
B.  144ab
C.  −144ab
D.  −24ab
E.  724ab
A    B    C    D    E 

[ 1-9106 - op net sinds 12.10.2018-(E)-30.10.2023 ]

Translation in   E N G L I S H

IN CONSTRUCTION
 A.  
B.  
C.  
D.  
E.  

Oplossing - Solution

... = 12.12ab = 144ab
GWB