Решите уравнение (6y+15)(2,4-0,8y)=0.

\[(6y + 15)(2,4 - 0,8y) = 0\]

\[6y + 15 = 0\ \ \ \ \ \ \ \ 2,4 - 0,8y = 0\]

\[6y = - 15\ \ \ \ \ \ \ \ \ \ \ \ 0,8y = 2,4\]

\[y = - \frac{15}{6}\ \ \ \ \ \ \ \ \ \ \ \ \ y = \frac{24}{8}\]

\[y = - 2,5\ \ \ \ \ \ \ \ \ \ \ \ \ \ y = 3\]

\[Ответ:y = - 2,5;\ \ y = 3.\]