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ksyushenkaivan
@ksyushenkaivan
July 2022
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ПОМОГИТЕ ПРОШУУУУ!!!!! СРОЧНО НАДО!!!
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pomoshnik09
1) =(2*(-1)²+1) / (1-2*-1)=2+1 /1+2=3/3=1
2) общий знаменатель (а+b)(a-b)
a²b/ a+b = a²b(a-b) / (a+b)(a-b) ab² / a-b = ab²(a+b) / (a-b)(a+b)
3) =17/5*a³b^-4 * 5/17 a^-1b^5 =17/5*5/17a^(3-1)b^(-4+5)=a²b
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Answers & Comments
2) общий знаменатель (а+b)(a-b)
a²b/ a+b = a²b(a-b) / (a+b)(a-b) ab² / a-b = ab²(a+b) / (a-b)(a+b)
3) =17/5*a³b^-4 * 5/17 a^-1b^5 =17/5*5/17a^(3-1)b^(-4+5)=a²b