Question

(x - 3)(2x - 6)(4x - 16) = 0

Answer 1

(x - 3)(2x - 6)(4x - 16) = 0

=> x - 3 = 0 => x = 3

hoặc 2x - 6 = 0 => x - 3 = 0 => x = 3

hoặc 4x - 16 = 0 => x - 4 = 0 => x = 4

                     Vậy x = 3 . x = 4

Answer 2

\(\left(x-3\right)\left(2x-6\right)\left(4x-16\right)=0\)

\(\Rightarrow\hept{\begin{cases}x-3=0\\2x-6=0\\4x-16=0\end{cases}}\)

\(\Rightarrow\hept{\begin{cases}x=3\\x=3\\x=4\end{cases}}\)

Vậy \(x\in\left\{3;4\right\}\)