计算:(-212)2等于(  )A.414B.-414C.-254D.61

计算:(-212)2等于(  )A.414B.-414C.-254D.614
2025-06-20 15:33:28
推荐回答(1个)
回答1:

(-2

1
2
2=(-
5
2
2=
25
4
=6
1
4
,故选D.