ukm
2x(x-1/7)=0
<=> 2x=0 hoặc x-1/7=0
+) 2x=0=>x=0
+) x-1/7=0
=>x=0+1/7=1/7
2x . ( x - \(\frac{1}{7}\) ) = 0
=> 2x = 0 hoặc ( x - \(\frac{1}{7}\) ) = 0
TH1: 2x = 0
x = 0 : 2 = 0
TH2: x - \(\frac{1}{7}\) = 0
x = 0 + \(\frac{1}{7}\)
x = \(\frac{1}{7}\)
Vậy x \(\in\){ 0 ; \(\frac{1}{7}\)}
~Chúc bạn học tốt!~
\(2x.\left(x-\frac{1}{7}\right)=0\)
\(\Leftrightarrow\orbr{\begin{cases}2x=0\\x-\frac{1}{7}=0\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=0:2\\x=0+\frac{1}{7}\end{cases}}\)
\(\Leftrightarrow\orbr{\begin{cases}x=0\\x=\frac{1}{7}\end{cases}}\)
Vậy \(x\in\left\{0;\frac{1}{7}\right\}\)
Rất vui vì giúp đc bạn <3
\(2x\left(x-\frac{1}{7}\right)=0\)
\(\Rightarrow\orbr{\begin{cases}2x=0\\x-\frac{1}{7}=0\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}x=0\\x=\frac{1}{7}\end{cases}}\)