👤

a)4+4+4=336
B)9la puterea 43-9 la puterea 42-9 la puterea 41=71•3 la puterea x


Răspuns :

b)
9^41•(9^2-9-1)=71•3^x
9^41•71=71•3^x
(3^2)^41=3^x
3^82=3^x
x=82