Решите уравнение (7x−2)(7x+1,4)=0.

\[(7x - 2)(7x + 1,4) = 0\]

\[7x - 2 = 0\ \ \ \ \ \ \ \ \ \ 7x + 1,4 = 0\]

\[7x = 2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 7x = - 1,4\]

\[x = \frac{2}{7}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x = - 0,2\]

\[Ответ:x = - 0,2;\ \ \ x = \frac{2}{7}.\]