㎡ 2m-799=0求解,要详细过程,谢谢!

2025-06-27 15:32:15
推荐回答(1个)
回答1:

㎡+2m-799=0
m=
(-2+ -根号(4+4x799))/2
=(-2+ -根号(3200))/2
=(-2+ -40根2)/2
=-1+ -20根2
m1= -1-20根2
m2= -1+ 20根2