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Автор - Marq100

найти дискриминант 3x-x^2+10=0

Ответ

Автор - tokomaka
3x-x^2+10=0 |*(-1)
x^2-3x-10=0
D=b^2-4ac=9+40=49, D>0, 2 к.
X1=(-b+_/D)/2a=(3+7)/2=5
X2=(-b-_/D)/2a=(3-7)/2=-2
Ответ:5;-2
У меня на клавиатуре нет знака корня, поэтому я его заменил на _/

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