Question

         Đề bài như sau nè:

  \(\frac{x}{\frac{4}{2}}\)=\(\frac{4}{\frac{x}{2}}\)

Answer 1

\(\frac{x}{\frac{4}{2}}=\frac{4}{\frac{x}{2}}\)

\(\Rightarrow\frac{x}{2}=4.\frac{2}{x}=\frac{8}{x}\)

\(\Rightarrow x^2=2.8=16=4^2=\left(-4\right)^2\)

\(\Rightarrow\orbr{\begin{cases}x=4\\x=-4\end{cases}}\)

Answer 2

thank you very much

Answer 3

\(\frac{x}{\frac{4}{2}}=\frac{4}{\frac{x}{2}}\)

\(x\times x\times2=4\times4\times2\)

\(x\times x\times2=32\)

\(x\times x=32\div2\)

\(x\times x=16\)

\(\Rightarrow x=4\)