化简求值:2(a^2b+3ab^2)-4(ab^2+3a^2b)-(a^2b-2ab^2)
=2a^2b+6ab^2-4ab^2-12a^2b-a^2b+2ab^2
=-11a^2b+4ab^2
化简求值:2(a^2b+3ab^2)-4(ab^2+3a^2b)-(a^2b-2ab^2),其中a=-1/2,b=1/3
化简求值:2(a^2b+3ab^2)-4(ab^2+3a^2b)-(a^2b-2ab^2),其中a=-1/2,b=1/3
数学人气:344 ℃时间:2019-08-17 19:15:21
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