Задача 59138 x^2+px+10=0, x1=2...

606f0ad5286699463e30a5af

08.04.2021 16:54:26

x^2+px+10=0, x1=2

5f3ea7e3faf909182968ddd9

08.04.2021 17:41:32

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[b]по теореме Виета[/b]

[b]x_(1)*x_(2)=10[/b]


2*x_(2)=10
x_(2)=5


[b]x_(1)+x_(2)=-p[/b]

p=-(x_(1)+x_(2))=-(2+5)=-7