[(4a+3b)(4a-3b)-(3a=3b)(2a-3b)]/5a 化简,麻烦写下过程.

分类: 作业答案 • 2021-12-19 10:59:48

问题描述：

答

=2a+3b-9/5b

答

[(4a+3b)(4a-3b)-(3a-3b)(2a-3b)]/5a
=(16a²-9b²-6a²+9ab+6ab-9b²)/5a
=(10a²+15ab-9b²)/5a
=2a+3b-9/5b