请问1-2㎡-2m=0怎么算?

2025-05-08 16:42:28
推荐回答(1个)
回答1:

1-2㎡-2m=0
2m²+2m-1=0
m²+m-1/2=0
(m+1/2)²=1/2+1/4
m+1/2=±√(3/4)
m1=-1/2+√3/2
m2=-1/2-√3/2