m^2-7mn+6n^2=0,求3m/2n的值
问题描述:
m^2-7mn+6n^2=0,求3m/2n的值
答
把m²-7mn+6n²分解因式得到:m²-7mn+6n²=(m-n)(m-6n)
m²-7mn+6n²=0
(m-n)(m-6n)=0
m-n=0,m=n
m-6n=0,m=6n
所以3m/2n=3/2;
或3m/2n=9