Предмет: Алгебра, автор: oliunkcsergion

2x²-9x-10=0 Поможіть будь ласка..

Ответы

Автор ответа: sofa696

Объяснение:

2х²-9х-10=0

2х²-9х=10

Решение:

11х³=10

х=

$1 \frac{1}{10} x {}^{3}$

Автор ответа: kovch474675

D=81-4*2*(-10)=81+80=161

x1=9-12.7/4=-0.925

x2=9+12.7/4=5.425

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