Question

Tìm x trong các tỉ lệ thức sau:

\(\dfrac{x^2}{6}\)= \(\dfrac{24}{25}\)

Answer 1

ta có : \(\dfrac{x^2}{6}=\dfrac{24}{25}\Leftrightarrow x^2=\dfrac{24.6}{25}=\dfrac{144}{25}\) \(\Rightarrow x=\pm\sqrt{\dfrac{144}{25}}=\pm\dfrac{12}{5}\)

vậy \(x=\pm\dfrac{12}{5}\)

Answer 2

\(\dfrac{x^2}{6}=\dfrac{24}{25}\Rightarrow x^2=\dfrac{6.24}{25}=\dfrac{144}{25}\Rightarrow x=\pm\sqrt{\dfrac{144}{25}}=\pm\dfrac{12}{5}\)