(-1/2m^2-1/3mn+1)·(-1/4m^3n)只要答案就行正在纠结算法阿~
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(-1/2m^2-1/3mn+1)·(-1/4m^3n)只要答案就行正在纠结算法阿~
(-1/2m^2-1/3mn+1)·(-1/4m^3n)
只要答案就行正在纠结算法阿~
(-1/2m^2-1/3mn+1)·(-1/4m^3n)只要答案就行正在纠结算法阿~
(-1/2m^2-1/3mn+1)·(-1/4m^3n)
=(1/2m^2+1/3mn-1)(1/4m^3n)
=(1/2·1/4)m^(2+3)n+(1/3·1/4)m^(1+3)n^(1+1)-1/4m^3n
=(1/8)m^5n+(1/12)m^4n^2-1/4m^3n
3mn^2·1/2mn^2 +3/2m(mn)^2
-2(mn-3m平方)-{m平方-5(mn-m平方)+2mn,其中m=1,n=-2
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