Question

Tìm số tự nhiên x, biết:

2^x . 4 = 128

Answer 1

2^x . 4 = 128

2^x = 128 : 4

2^x = 32

=> 2⁵ = 32 => x = 5

Answer 2

2^x . 4 = 128

=> 2^x = 128 : 4

=> 2^x = 32 = 2⁵

=> x = 5

 

Answer 3

2^x . 4 = 128

2^x = 128 : 4

2^x = 32

2^x = 2⁵

=> x = 5

Answer 4

2^x . 4 = 128

2^x = 128:4 = 32

mà 2^5 =32

=> x= 5

Answer 5

\(2^x.4=128\)

\(2^x=\frac{128}{4}\)

\(2^x=32\)

\(2^x=2^5\)

\(\Rightarrow x=5\)

Answer 6

2^x . 4 = 128

2^x = 128 : 4

2^x = 32

2^x = 2⁵

=> x = 5