Question

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

Answer 1

${x }^{2} - 4x = 0$
$x( x - 4) = 0$
$x = 0 \: \: \:and \: \: \: x - 4 = 0$
$x = 0 \: \: \: and \: \: \: x = 4$
So the answers are x = 0 v x = 4