Question

Tìm x
(5x-1)^2=36/49

 

 

Answer 1

`->` \(\left[{}\begin{matrix}5x-1=\dfrac{6}{7}\\5x-1=-\dfrac{6}{7}\end{matrix}\right.\)

`->` \(\left[{}\begin{matrix}x=\dfrac{13}{35}\\x=\dfrac{1}{35}\end{matrix}\right.\)