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nazarpol98
@nazarpol98
August 2022
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1) 8/(5a-2)+3/(2-5a)
2) (a^2-14+49)/a^2 *a^6/(a^2-49)
3) 7/ab-(3a+6)/a×5/(a+2)
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amina2amina
Первое.
8/(5а-2) +3/(2-5а)=8/(5а-2)-3(5а-2)=(8-3)/(5а-2)=5/ (5а-2)
второе.
(а-7)^2*а^6/а^2(а-7)(а+7)=(а-7)*а^4/(а+7)
третье
7/ав-3(а+2)/а*5/(а+2)=7/ав-15/а=7*15в/ав
2 votes
Thanks 7
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Answers & Comments
8/(5а-2) +3/(2-5а)=8/(5а-2)-3(5а-2)=(8-3)/(5а-2)=5/ (5а-2)
второе.
(а-7)^2*а^6/а^2(а-7)(а+7)=(а-7)*а^4/(а+7)
третье
7/ав-3(а+2)/а*5/(а+2)=7/ав-15/а=7*15в/ав