Вопрос:

Ответ:

\[2x + 8x^{2} = 0\]

\[2x(1 + 4x) = 0\]

\[1)\ 2x = 0\]

\[x = 0.\]

\[2)\ 1 + 4x = 0\]

\[x = - \frac{1}{4}.\]

\[Ответ:x = 0;\ \ x = \frac{1}{4}.\]