Предмет: Алгебра, автор: KiriGiri2345

X^2-x-2/(x-5)^2 больше нуля

Ответы

Автор ответа: sedinalana

x²-x-2=0
x1+x2=1 U x1*x2=-2
x1=-1 U x2=2
x-5=0⇒x=5
+ _ + +
----------[-1]---------[2]-------------(5)-----------------
x∈(-∞;-1] U [2;5) U (5;∞)

Автор ответа: KiriGiri2345

спасибо,выручила

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