Question

\(\dfrac{x}{2}\)=\(\dfrac{8}{x}\)

Tìm x

⊑⟒⌰⌿ ⋔⟒ :*(

Answer 1

x=4

Answer 2

\(\Rightarrow x^2=16\Rightarrow\left[{}\begin{matrix}x=4\\x=-4\end{matrix}\right.\)

Answer 3

\(\dfrac{x}{2}=\dfrac{8}{x}\Rightarrow x^2=8.2\)

\(\Rightarrow x^2=16\)

\(\Rightarrow\left[{}\begin{matrix}x=-4\\x=4\end{matrix}\right.\)