Question

tìm x biết

(2-x)^2=1024

NHANH Ạ

Answer 1

\(\left(2-x\right)^2=1024\\ \Rightarrow\left[{}\begin{matrix}2-x=32\\2-x=-32\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}x=-30\\x=34\end{matrix}\right.\)

Answer 2

`(2-x)^2=1024`

`=>(2-x)^2= +- 32^2`

\(\Rightarrow\left[{}\begin{matrix}2-x=32\\2-x=-32\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=2-32\\x=2+32\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=-30\\x=34\end{matrix}\right.\)