Question

(4x - 1)^3 = 27

giải giúp mình

Answer 1

\(\left(4x-1\right)^3=27\Leftrightarrow4x-1=3\Leftrightarrow4x=4\Leftrightarrow x=1\)

Answer 2

\(\left(4x-1\right)^3=27\\ \Leftrightarrow\left(4x-1\right)^3=3^3\\ \Leftrightarrow4x-1=3\\ \Leftrightarrow4x=4\\ \Leftrightarrow x=1\)

Answer 3

Ta có: \(\left(4x-1\right)^3=27\)

\(\Leftrightarrow4x-1=3\)

\(\Leftrightarrow4x=4\)

hay x=1