mx·2+2(3-2m)x+3m-2=0的左边是一个关于x的完全平方式 则m等于?

mx²+2(3-2m)x+3m-2=0由于是x的完全平方式,所以有2个相同的根判别式Δ=b²-4ac=0,即[2(3-2m)]²-4(m)(3m-2)=04(3-2m)²-4m(3m-2)=09-12m+4m²-3m²+2m=0m²-10m+9=0(m-1)(m-9)=0m=1 or m=9