Question

2^x-1=16. tìm x

Answer 1

2^x-1 = 16

=> 2^x-1 = 2⁴

=> x - 1 = 4

=> x = 5

Answer 2

2^x-1=16=2⁴

=>x-1=4

x=4+1

x=5

Vậy x=5

Answer 3

2^x-1=2^4 suy ra  x-1=4   x=4+1    x=5   vay x=5

Answer 4

2^{x - 1} = 16

=> 2^{x - 1} = 2⁴

=> x - 1 = 4

=> x = 4 + 1 = 5

Answer 5

16= 2⁴

Mà 2^x-1=16

Vậy x = 4+1 = 5