GIÚP MIK BÀI NÀY VOTE 5☆ ¿ (3.x).(157-x)=0 08/08/2021 Bởi Alice GIÚP MIK BÀI NÀY VOTE 5☆ ¿ (3.x).(157-x)=0
`(3.x)(157-x)=0` `⇔` \(\left[ \begin{array}{l}3.x=0\\157-x=0\end{array} \right.\) `⇔` \(\left[ \begin{array}{l}x=0\\x=157\end{array} \right.\) $\text{Vậy ∈ {0; 157}}$ Bình luận
`(3.x).(157-x)=0` `=>`\(\left[ \begin{array}{l}3.x=0\\157-x=0\end{array} \right.\) `=>`\(\left[ \begin{array}{l}x=0\\x=157\end{array} \right.\) Vậy `x in {0;157}.` Bình luận
`(3.x)(157-x)=0`
`⇔` \(\left[ \begin{array}{l}3.x=0\\157-x=0\end{array} \right.\) `⇔` \(\left[ \begin{array}{l}x=0\\x=157\end{array} \right.\)
$\text{Vậy ∈ {0; 157}}$
`(3.x).(157-x)=0`
`=>`\(\left[ \begin{array}{l}3.x=0\\157-x=0\end{array} \right.\) `=>`\(\left[ \begin{array}{l}x=0\\x=157\end{array} \right.\)
Vậy `x in {0;157}.`