[(4a+3b)(4a-3b)-(3a=3b)(2a-3b)]/5a 化简

问题描述:

[(4a+3b)(4a-3b)-(3a=3b)(2a-3b)]/5a 化简

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