Question

32 la puterea x = 8 la puterea 40

aflati x

Answer 1

32=2 la puterea 5
8=2 la puterea 3
2 la puterea 5x=2 la puterea 3*40
egalitatea intre exponenti  : 5x=120⇒x=120:5
deci x = 24

Answer 2

32ˣ = 8⁴⁰

(2⁵)ˣ = ( 2³)⁴⁰

2⁵ˣ = 2 ¹²⁰

5x= 120
 
  x = 120: 5
 
  x =24