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никита2949
@никита2949
September 2021
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номер 15 нужна помощь
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2007Albina
А)x(a-3)-(a-3)\a(a-3)=(x-1)(a-3)\a(a-3)=x-1\a
б)x(y-1)+(y-1)\x(y-1)+2(y-1)=(x+1)(y-1)\(x+2)(y-1)=x+1\x+2
в)c(a-2b)-a(a-2b)\(a-2b)^2=(c-a)(a-2b)\(a-2b)^2=c-a\a-2b
г)
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Answers & Comments
б)x(y-1)+(y-1)\x(y-1)+2(y-1)=(x+1)(y-1)\(x+2)(y-1)=x+1\x+2
в)c(a-2b)-a(a-2b)\(a-2b)^2=(c-a)(a-2b)\(a-2b)^2=c-a\a-2b
г)