(-1)×(-20)×(-2)×|-1-3+15|
ajutor vă rog !!!


Răspuns :

(-1)×(-20)×(-2)×|-1-3+15|=

(-1)×(-20)×(-2)×|11|=

(-1)×(-20)×(-2)×11=

-(1×20×2×11)=

-(40×11)=

-440