Question

решите уравнение 4х2+20х=0

Answer 1

$4 x^{2} +20x=0$
$4x(x+5)=0$
$4x=0; x=0$
$x+5=0; x=-5$

Answer 2

4х(х+5)=0
4х=0 х+5=0
х=0 х= -5