若a+b=4ab 则代数式2a-ab+2b/2ab值为?

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若a+b=4ab则代数式2a-ab+2b/2ab值为?若a+b=4ab则代数式2a-ab+2b/2ab值为?若a+b=4ab则代数式2a-ab+2b/2ab值为?2a-ab+2b/2ab=[2(a+b

若a+b=4ab 则代数式2a-ab+2b/2ab值为?
若a+b=4ab 则代数式2a-ab+2b/2ab值为?

若a+b=4ab 则代数式2a-ab+2b/2ab值为?
2a-ab+2b/2ab
=[2(a+b)-ab]/2ab
=(2*4ab-ab)/2ab
=7ab/2ab
=7/2

a+b=4ab
则1/a+1/b=4
2a-ab+2b/2ab
=1/b-1/2+1/a
=3.5

(2a-ab+2b)/2ab
=(2a+2b-ab)/2ab
=[2(a+b)-ab]/2ab
=(2*4ab-ab)/2ab
=7ab/2ab
=7/2
=3.5
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