Question

tìm x biết (3x)^3=27

 

Answer 1

`(3x)^3 = 27`

`(3x)^3 = 3^3`

`3x=3`

`x=3:3`

`x=1`

Answer 2

\((3x)^3=27\)

\((3x)^3=3^3\)

\(3x=3\)

\(x=3:3=1\)

Answer 3

(3x)^3 = 3^3

3x=3

x=3:3

x=1