Предмет: Математика, автор: Аноним

Решите уравнение х*(х-9)=144

Ответы

Автор ответа: Silеncе

1

$x*(x-9)=144 \\ x^{2} -9x=144 \\ x^{2} -9x-144=0 \\ D=657 \\$
$x=- \frac{3 \sqrt{73}-9 }{2} \\ \\ x= \frac{3 \sqrt{73} +9}{2}$

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