①(25m^4-15m^2+5m)/(-5m)②(3a^2b-2ab+2ab^2)/ab③(5m^3n^2-6m^2)/3m高手帮帮忙

①(25m^4-15m^2+5m)/(-5m)②(3a^2b-2ab+2ab^2)/ab③(5m^3n^2-6m^2)/3m高手帮帮忙

题目
①(25m^4-15m^2+5m)/(-5m)②(3a^2b-2ab+2ab^2)/ab③(5m^3n^2-6m^2)/3m高手帮帮忙
答案
①(25m^4-15m^2+5m)/(-5m)=5m(5m³-3m+1)/(-5m)=-5m³+3m-1②(3a^2b-2ab+2ab^2)/(ab)=an(3a-2+2b²)/(ab)=2b²+3a-2③(5m^3n^2-6m^2)/(3m)=5/3*m²n²-2m
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