Предмет: Алгебра, автор: Qwerty2w8

пожалуйста помогите кому не трудно. только 3 а) и б)

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Автор ответа: Jabari4

0

Ща, дайте подумать. Щас напишу

Автор ответа: lol831

0

2а-1/(а²-1)+3/(2а²+2а)-2/а
приведем к общему знаменателю
(2а²-а+4а³+4а²+3а²-3-2а²+2-4а²-4а)/а(а²-1)(2а²+2а)

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