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otlichnik2017
@otlichnik2017
November 2021
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Решите пожалуйста
(a/a+4-a/a-4)*a+4/a
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yarovoe
(a/(a+4)-a/(a-4)·(
a+4)/a= (a(a+4)-a(a-4))/(a-4)(a+4)
·(a+4)/a=
=(a²+4a-a²+4a)/(a-4)·((a+4)/a)=((4a+4a)/(a-4)(a+4))· ((a+4)/a)=
(8a/(a+4)(a-4))· ((a+4)/a)=8/(a-4)
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Answers & Comments
=(a²+4a-a²+4a)/(a-4)·((a+4)/a)=((4a+4a)/(a-4)(a+4))· ((a+4)/a)=
(8a/(a+4)(a-4))· ((a+4)/a)=8/(a-4)