ГДЗ по алгебре 8 класс Мерзляк Задание 707

\[\boxed{\mathbf{707\ (707).\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ x² + 6x - 32 = 0\]

\[x_{1} + x_{2} = - 6\]

\[x_{1}x_{2} = - 32\]

\[2)\ x² - 10x + 4 = 0\]

\[x_{1} + x_{2} = 10\]

\[x_{1}x_{2} = 4\]

\[3)\ 2x² - 6x + 3 = 0\]

\[x_{1} + x_{2} = \frac{6}{2} = 3\]

\[x_{1}x_{2} = \frac{3}{2} = 1,5\]

\[4)\ 10x² + 42x + 25 = 0\]

\[x_{1} + x_{2} = - \frac{42}{10} = - 4,2\]

\[x_{1}x_{2} = \frac{25}{10} = 2,5\]