Question

Determina nr nat x din:
a)2 la puterea x-4=4
b)[(5•2•7) totul la a 2+x]-401=5•10 la puterea 2

Answer 1

a) 2 la puterea x= 8
2 la puterea x =2 la puterea a 3a
x=3
b) (4900+x)-401=500
4900+x = 99
x= 99-4900
x=-4801