(4mn²+3m²n-4m)-2(mn²+3/2m²n+1)化简
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(4mn²+3m²n-4m)-2(mn²+3/2m²n+1)化简(4mn²+3m²n-4m)-2(mn²+3/2m²n+
(4mn²+3m²n-4m)-2(mn²+3/2m²n+1)化简
(4mn²+3m²n-4m)-2(mn²+3/2m²n+1)化简
(4mn²+3m²n-4m)-2(mn²+3/2m²n+1)化简
(4mn²+3m²n-4m)-2(mn²+3/2m²n+1)
=4mn²+3m²n-4m-2mn²-3m²n-2
=4mn²-2mn²+3m²n-3m²n-4m-2
=2mn²-4m-2