\[x(x - 2)(x - 3) =\]
\[= 8 + x(x - 2,5)²\]
\[x\left( x^{2} - 5x + 6 \right) =\]
\[= 8 + x\left( x^{2} - 5x + 6,25 \right)\]
\[x^{3} - 5x^{2} + 6x =\]
\[= 8 + x^{3} - 5x^{2} - 6,25x\]
\[0,25x = - 8\]
\[x = - 32\]
\[Ответ:\ x = - 32.\]