以知单项式-0.125x^m-1,y^2n-1的积与单项式0.25x^b y^c相加的结果是0.625ax^n y^m,求a.b.c.的值
问题描述:
以知单项式-0.125x^m-1,y^2n-1的积与单项式0.25x^b y^c相加的结果是0.625ax^n y^m,求a.b.c.的值
答
m-1=b=n
2n-1=c=m
0.625a=0.25-0.125
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m=2,n=1
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a=0.2
b=1
c=2