Question

2^x:8=4²      Tìm x

 

Answer 1

2^x : 8 = 4²

2^x : 8 = 16

2^x = 16 : 8 

2^x = 2 

=> x = 1

nhớ k cho mik nha

Answer 2

ngu vl sai r phai la

2^x /8=16 

2^x =16*8=128 suy ra x=7

Answer 3

 2^x:8=4²

 2^x:8=16

 2^x=16.8

 2^x=128

 2⁷=128

Vậy x = 7