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AlexeyMusatov
@AlexeyMusatov
July 2022
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Помогите, пожалуйста, с номером 7(а,б); 8(а,б); 9(а,в)
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Allas83
7а) (5х^2-2y^2)/3x=5x^2/3x=5/3x
б)(a^2-47)/a+7-2/(a+7)=(a^2-47-2)/a+7=(a^2-49)/a+7=(a-7)(a+7)/a+7=a-7
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Answers & Comments
б)(a^2-47)/a+7-2/(a+7)=(a^2-47-2)/a+7=(a^2-49)/a+7=(a-7)(a+7)/a+7=a-7