1/2m·mn·m-m·n·m²+1/2m²·n·m 化简
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![1/2m·mn·m-m·n·m²+1/2m²·n·m 化简](/uploads/image/z/249942-30-2.jpg?t=1%2F2m%C2%B7mn%C2%B7m-m%C2%B7n%C2%B7m%26%23178%3B%2B1%2F2m%26%23178%3B%C2%B7n%C2%B7m+%E5%8C%96%E7%AE%80)
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0!
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1/2m·mn·m-m·n·m²+1/2m²·n·m 化简
1/2m·mn·m-m·n·m²+1/2m²·n·m 化简
1/2m·mn·m-m·n·m²+1/2m²·n·m 化简
解=1/2m^2.n.m+1/2m^2.n.m-m.n.m^2
=m^2.n.m-m^2.n.m
=0