\(x:0,25=16:x\)
\(\Leftrightarrow\frac{x}{0,25}=\frac{16}{x}\)
\(\Rightarrow x^2=16.0,25=4\)
mà \(x^2=4\)
\(\Rightarrow\hept{\begin{cases}x=2\\x=-2\end{cases}}\)
\(x:0,25=16:x\)
\(0,25.16=2x\)
\(4=2x\)
\(\Rightarrow x=2\)
x : 0,25 = 16 : x
2x = 16 . 0,25
2x = 4
x = 2
ta có \(x:0,25=16:x\) => \(\frac{x}{0,25}=\frac{16}{x}\) => \(x^2=0,25.16\)
=> \(x^2=4\) => \(x=-2\); \(2\)
Vậy \(S=\left\{-2;2\right\}\)
Tìm x biết :
x: 0,25 = 16:x
2x=16.0,25
2x=4
x=2
ai tích mik mik sẽ tích lại !!!!!!!!!!!!!!!!!
x : 0,25 = 16 : x
\(\frac{x}{0,25}\)= \(\frac{16}{x}\)
2 x = 16 x 0,25 =4
x = 2 : 2
x = 2
x = - 2