Предмет: Алгебра, автор: Аноним

сократите дробь \frac{x^{2}-4x^{}+4}{x^{2}-9x+14}

Ответы

Автор ответа: letabru

(x^2-4x+4)/(x^2-9x+14)= x^2-9x+14=0
=(x-2)^2/(x-2)(x-7)= x1+x2=9
=x-2/x-7 x1x2=14⇒x1=2, x2=7

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