若ab=3,a-b=5,则a²b-ab²=______

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若ab=3,a-b=5,则a²b-ab²=______若ab=3,a-b=5,则a²b-ab²=______若ab=3,a-b=5,则a²b-ab&#

若ab=3,a-b=5,则a²b-ab²=______
若ab=3,a-b=5,则a²b-ab²=______

若ab=3,a-b=5,则a²b-ab²=______
a²b-ab²=ab(a-b)=3X5=15

a²b-ab²=ab(a-b)=3×5=15

a²b-ab²=ab（a-b）=3x5=15