Question

(x+3/5)²+41/25=9% : 4,5%

Answer 1

giải nữa.  bạn ơi

Answer 2

(\(x\) + \(\dfrac{3}{5}\))² + \(\dfrac{41}{25}\)  = 9%: 4,5%

(\(x\) + \(\dfrac{3}{5}\))² + \(\dfrac{41}{25}\) = 2

(\(x\) + \(\dfrac{3}{5}\))²          = 2 - \(\dfrac{41}{25}\)

(\(x\) + \(\dfrac{3}{5}\))² = \(\dfrac{9}{25}\)

\(\left[{}\begin{matrix}x+\dfrac{3}{5}=\dfrac{3}{5}\\x+\dfrac{3}{5}=-\dfrac{3}{5}\end{matrix}\right.\)

  \(\left[{}\begin{matrix}x=\dfrac{3}{5}-\dfrac{3}{5}\\x=-\dfrac{3}{5}-\dfrac{3}{5}\end{matrix}\right.\)

   \(\left[{}\begin{matrix}x=0\\x=-\dfrac{6}{5}\end{matrix}\right.\)

Vậy \(x\in\) {-1; \(\dfrac{1}{5}\)}