Ответ:
[tex]\frac{a-1}{a}*\frac{a^2-4}{a+2}:\frac{a-1}{a}=\frac{a^2-4}{a+2}=\frac{a^2-2^2}{a+2}=\frac{(a-2)(a+2)}{a+2}=a-2[/tex]
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Ответ:
[tex]\frac{a-1}{a}*\frac{a^2-4}{a+2}:\frac{a-1}{a}=\frac{a^2-4}{a+2}=\frac{a^2-2^2}{a+2}=\frac{(a-2)(a+2)}{a+2}=a-2[/tex]