Toán 2014 . |X – 12| + (X – 12) ^2 = 2013 . |12=X| 30/11/2021 By Ariana 2014 . |X – 12| + (X – 12) ^2 = 2013 . |12=X|
Đáp án: `2014.|x-12|+(x-12)^2=2013.|12-x|` `=> 2014.|x-12|+(x-12)^2-2013.|x-12|=0` `=> |x-12|.(2014-2013)+(x-12)^2=0` `=> |x-12|+(x-12)^2=0` `=>` \(\left[ \begin{array}{l}|x-12|=0\\(x-12)^2=0\end{array} \right.\) `=> x=12` Vậy `x=12` Trả lời
Giải thích các bước giải:
Đáp án:
`2014.|x-12|+(x-12)^2=2013.|12-x|`
`=> 2014.|x-12|+(x-12)^2-2013.|x-12|=0`
`=> |x-12|.(2014-2013)+(x-12)^2=0`
`=> |x-12|+(x-12)^2=0`
`=>` \(\left[ \begin{array}{l}|x-12|=0\\(x-12)^2=0\end{array} \right.\)
`=> x=12`
Vậy `x=12`