题目内容
若2x2+1与4x2-2x-5互为相反数,则x为
[ ]
A.-1或![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image806.gif)
![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image806.gif)
B.1或-![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image807.gif)
![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image807.gif)
C.1或-![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image808.gif)
![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image808.gif)
D.-1或![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image807.gif)
![](http://thumb.1010pic.com/pic7/pages/30A1/0085/0404/5d28f73a586c8050c26dee06d808c5d2/A/Image807.gif)
答案:C
解析:
解析:
依题意:2 |
![](http://thumb2018.1010pic.com/images/loading.gif)
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若2x2+1与4x2-2x-5的值互为相反数,则x的值是( )
A、-1或
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