2a²b²(3b²-5ab)÷[a²(-2b)³]=_____________

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2a²b²(3b²-5ab)÷[a²(-2b)³]=_____________
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2a²b²(3b²-5ab)÷[a²(-2b)³]=_____________
2a²b²(3b²-5ab)÷[a²(-2b)³]=_____________

2a²b²(3b²-5ab)÷[a²(-2b)³]=_____________
2a²b²(3b²-5ab)÷[a²(-2b)³]
=2a²b³(3b-5a)÷(-8a²b³)
= -1/4 (3b-5a)
= -3/4b+5/4 a