[(4a+3b)(4a-3b)-(3a=3b)(2a-3b)]/5a 化简,麻烦写下过程.
2个回答
[(4a+3b)(4a-3b)-(3a-3b)(2a-3b)]/5a
=(16a²-9b²-6a²+9ab+6ab-9b²)/5a
=(10a²+15ab-9b²)/5a
=2a+3b-9/5
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