Question

РЕШИТЬ 9 КЛАСС 0.2х^2-0.04х=0

Answer 1

$0.2x^2-0.04x=0 \\ 0.2x(x-0.2)=0 \\ \\ x=0 \\ x-0.2=0 \\ \\ \left \{ {{x=0} \atop {x=0.2}} \right.$