Question

$x { }^{2} - 4x = 0$


​

Answer 1

Ответ:

$x^2-4x=0\\\\x\, (x-4)=0\\\\a)\ \ x=0\\\\b)\ \ x-4=0\ \ ,\ \ x=4\\\\Otvet:\ \ x_1=0\ ,\ x_2=4\ .$