化简 10x²Y³z²分之-5x³yz9-m²分之m²-3m

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化简 10x²Y³z²分之-5x³yz9-m²分之m²-3m
化简 10x²Y³z²分之-5x³yz
9-m²分之m²-3m

化简 10x²Y³z²分之-5x³yz9-m²分之m²-3m
-5x³yz/10x²Y³z²=-x/2y²z
m²-3m/9-m²=m(m-3)/(3+m)(3-m)=-m/(m+3)
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