Предмет: Математика, автор: Танюшка211

х во 2 степени-19х+88=0

Ответы

Автор ответа: nedenispolybomy

По теореме Виета
$x^{2} -19x+88=0; \ x_1+x_2=- frac{b}{a}=19; x_1*x_2= frac{c}{a}=88; \ x_1=8, x_2=11; \$
Ответ:8;11

Автор ответа: Viktor122

х2-19х+88=0
D=19^2-4*88=361-352=9
x=(19+3)/2=11
x=(19-3)/2=8

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Вот текст
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