(4a²-3ab)+(-5a²b+2ab)
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(4a²-3ab)+(-5a²b+2ab)
(4a²-3ab)+(-5a²b+2ab)
(4a²-3ab)+(-5a²b+2ab)
(4a²-3ab)+(-5a²b+2ab)
=4a²-3ab-5a²b+2ab
=4a²-ab-5a²b
4a²-ab-5a²b
原式=4a²-3ab-5a²b+2ab
=4a²-ab-5a²b
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