\[5x^{2} = 12x\]
\[5x^{2} - 12x = 0\]
\[5x(x - 2,4) = 0\]
\[5x = 0\]
\[x = 0.\]
\[x - 2,4 = 0\]
\[x = 2,4.\]
\[Ответ:x = 0;x = 2,4.\]