9㎡+12m-1=0

9㎡+12m-1=0
2025-06-29 04:16:50
推荐回答(1个)
回答1:

9㎡+12m-1=0
(3m+2)(3m+2) -5 =0
(3m+2)(3m+2) =5
3m+2=±√5
3m=-2±√5
m=(-2±√5)/3