`(x-2)^2+1=3,5:0,07`
`(x-2)^2+1=50`
`(x-2)^2=50-1=49`
`(x-2)^2=7^2` hoặc `(x-2)^2=(-7)^2`
`@TH1:x-2=7=>x=7+2=9`
`@TH2:x-2=-7=>x=-7+2=-5`
`(x-2)^2 + 1 = 3,5 : 0,07`
`=> (x - 2)^2 + 1 = 50`
`=> (x-2)^2 = 50 - 1`
`=> (x-2)^2 = 49`
`=> (x-2)^2 = 7^2` hay `(x-2)^2 = -7^2`
`=> x-2 = 7 x-2 = -7`
`=> x = 7 + 2 x = -7+2`
`=> x = 9` x = -5`
( x - 2) 2 + 1 = 3,5 : 0,07
( x - 2) 2 + 1 = 50
( x - 2 )2 = 50 - 1 = 49
=> x - 2 = \(\pm\) 7 \(\Rightarrow\left\{{}\begin{matrix}x-2=7\\x-2=-7\end{matrix}\right.\left\{{}\begin{matrix}x=9\\x=-5\end{matrix}\right.\)