2× [(21÷3×9+100÷10)×8]×[(78÷2+67-17×3)÷3]

Ajutor!!!


Răspuns :

2•[(21:3•9+100:10)•8]•[(78:2+67-17•3):3]=2•[(7•9+10)•8]•[(39+67-51):3]=2•(73•8)•[(106-51):3=2•584•(55:3)=1168•18,3=21374,4