Question

( 5x -3) mũ 3 +11 = 354

Answer 1

$\begin{array}{c} \color{#db8}{\texttt{Cre: Capybara}} \end{array}$
`(5x-3)^3 + 11 = 354`

`=> (5x-3)^3 = 354 - 11`

`=> (5x-3)^3 = 343`

`=> (5x-3)^3 = 7^3`

`=> 5x-3=7`

`=> 5x=7+3`

`=> 5x = 10`

`=> x=10:5`

`=> x=2`

Vậy: `x=2`

Answer 2

`(5x - 3)^3 + 11 = 354`

`=> (5x -3)^3 = 354 - 11`

`=> (5x - 3)^3 = 343`

`=> (5x - 3)^3 = 7^3`

`=> 5x - 3 = 7`

`=> 5x = 7 + 3`

`=> 5x = 10`

`=> x = 10 : 5`

`=> x = 2`

Vậy...