[a-b+(4ab/a-b)][a+b-(4ab+a+b)],其中a=3/2,b=-1/2

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[a-b+(4ab/a-b)][a+b-(4ab+a+b)],其中a=3/2,b=-1/2
[a-b+(4ab/a-b)][a+b-(4ab+a+b)],其中a=3/2,b=-1/2

[a-b+(4ab/a-b)][a+b-(4ab+a+b)],其中a=3/2,b=-1/2
[a-b+(4ab/a-b)][a+b-(4ab/a+b)]
=[(a-b)²+4ab]/(a-b) *[(a+b)²-4ab]/(a+b)
=(a+b)²/(a-b) *(a-b)²/(a+b)
=(a+b)(a-b)
=a²-b²
=(3/2)²-(-1/2)²
=9/4-1/4
=2

你的问题有点错误
(4ab/a+b)结果是2