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ilyaparamonov
@ilyaparamonov
August 2022
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СРОЧНО!!!! Помогите с примерами по алгебре!!!! прошу вас!!!
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Gulyi
1. 1/(a-2) - 4a/(a-2)(a+2)·(1/(a-1) -1/a(a-1))=1/(a-2) - (4a·(a-1))/(a-2)(a+2)a(a-1)=(a+2-4)/(a-2)(a+2)=(a-2)/(a-2)(a+2)=1/(a+2)
2. 7-5m / (m-4) + (4m(m-4)(m+4))/(m+4)4m + (9m-23)/(m-4)=)7-5m+m²-8m+16-9m-23) /m-4=m²-4m=m-4=m
3. (1/3+a - 6/(3-a)(3+a) + 2/3-a) ·(9-6a+a²)=((3-a-6+6+2a)/(3-a)(3+a)) · (9-6a+a²)=3+a/(3-a)(3+a) · (9-6a+a²)=1·(3-a)²/(3-a)=3-a
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Answers & Comments
2. 7-5m / (m-4) + (4m(m-4)(m+4))/(m+4)4m + (9m-23)/(m-4)=)7-5m+m²-8m+16-9m-23) /m-4=m²-4m=m-4=m
3. (1/3+a - 6/(3-a)(3+a) + 2/3-a) ·(9-6a+a²)=((3-a-6+6+2a)/(3-a)(3+a)) · (9-6a+a²)=3+a/(3-a)(3+a) · (9-6a+a²)=1·(3-a)²/(3-a)=3-a