Question

Calculati ecuatia exponentiala:
2^(x-2)+2^(x-3)+2^(x-4)=448

Answer 1

2^(x-4)* (4+2+1)=448
2^(x-4) =448:7=64=2^6
x-4=6
x=10
verificare
2^8+2^7+2^6= 256+128+64=448 adevarat, problema este bine rezolvata