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alexeewnamarya
@alexeewnamarya
July 2022
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509 номер. Помогите пожалуйста!!
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mmb1
Verified answer
(a²-3a-1/a+3)*1/(a²-1)*(a²+a)=(a³-a²+3a-1)/a*1/(a-1)(a+1)*a(a+1)=(a-1)³/(a-1)=(a-1)²
a=2.5
1.5²=9/4=2.25
1 votes
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alexeewnamarya
Спасибо большое!!
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Answers & Comments
Verified answer
(a²-3a-1/a+3)*1/(a²-1)*(a²+a)=(a³-a²+3a-1)/a*1/(a-1)(a+1)*a(a+1)=(a-1)³/(a-1)=(a-1)²a=2.5
1.5²=9/4=2.25