计算:(2/3ab²-2ab)×1/2ab

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计算:(2/3ab²-2ab)×1/2ab计算:(2/3ab²-2ab)×1/2ab计算:(2/3ab²-2ab)×1/2ab:(2/3ab²-2ab)×1/2

计算:(2/3ab²-2ab)×1/2ab
计算:(2/3ab²-2ab)×1/2ab

计算:(2/3ab²-2ab)×1/2ab
:(2/3ab²-2ab)×1/2ab
=1/3a^2b^3-a^2b^2

(2/3ab²-2ab)×1/2ab
=2ab(1/3b-1)×1/2ab
=1/3b-1

(2/3ab²-2ab)×1/2ab
=1/3a²b³-a²b²