Question

( 2x - 1) mũ 3 = 125

Answer 1

\(\left(2x-1\right)^3=125\\ \Rightarrow2x-1=5\\ \Rightarrow2x=6\\ \Rightarrow x=3\)

Answer 2

(2x−1)³ = 125

⇒ 2x − 1 = 5

⇒ 2x = 6

⇒ x = 3

Answer 3

(2x−1)\(^3\) = 125 

(2x - 1)\(^3\) = 5\(^3\)

=> 2x - 1 = 5

      2x      = 5 + 1

       2x      = 6

         x      = 6 : 2

          x      = 3 

Vây x = 3

Answer 4

Ta có: \(\left(2x-1\right)^3=125\)

\(\Leftrightarrow2x-1=5\)

\(\Leftrightarrow2x=6\)

hay x=3