Question

Реши уравнение:
2x(x−9)^2−x^2(x−9)=0

Answer 1

$2x(x-9)^2-x^2(x-9)=0\\ x(x-9)(2x-18-x)=0\\ \left[\begin{gathered} x=0\\ x=9\\ x=18 \end{gathered}\right.$