Предмет: Алгебра, автор: tommi98

9х^2-х+2=9 через дискремееант

Ответы

Автор ответа: Evgenia4836

1

9x²-x-7=0

D= 1+252= 253

x1= (1+√253)/18

x2= (1-√253)/18

Автор ответа: Amigo3

1

Ответ: 9*х^2-х-7=0 дискриминант 1+4*9*7=253, корни х1=0,5+0,5*+корень из 253, х2=0,5-0,5*корень из 253.

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