Question

(x-3)×(5-×)=0

Answer 1

X-3=0 hay 5-X=0 tương đương

X=3 hay X=5

Answer 2

Answer 3

\(\left(x-3\right)\times\left(5-x\right)=0\\ \Leftrightarrow\left[{}\begin{matrix}x-3=0\\5-x=0\end{matrix}\right.\\ \Leftrightarrow\left[{}\begin{matrix}x=3\\x=5\end{matrix}\right.\)

Vậy S = {3; 5}