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Автор - sergeyulyanov

Помогите срочно сократить дробь
(-8a²+12a-4)/(a-4a²)

Ответ

Автор - JuliaKovalchook
frac{-8a^{2}+12a-4}{a-4a^{3}}= frac{(1-2a)(4a-4)}{a(1-4a^{2})}=  frac{(1-2a)(4a-4)}{a(1-2a)(1+2a)}= frac{4a-4}{a(1+2a)} =frac{4(a-1)}{a(1+2a)}

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