已知-4x^(m+2)y^(3m-n)÷[-2x^(5m)y^(2m+n)]的商与-(1/2)x^3y^2是同类项,求m,n的值
问题描述:
已知-4x^(m+2)y^(3m-n)÷[-2x^(5m)y^(2m+n)]的商与-(1/2)x^3y^2是同类项,求m,n的值
答
-4x^(m+2)y^(3m-n)÷[-2x^(5m)y^(2m+n)]的商与x^(2-4m)y^(m-2n)是同类项
所以2-4m=3 m-2n=2
m=-1/4 n=-9/8