Question

Решите уравнение: 3z-z^2=3z^2

Answer 1

$3z-z^2=3z^2\ -4z^2+3z=0\ z(-4z+3)=0$
$z=0$
$-4z+3=0$
$-4z=-3$
$z= frac{3}{4}$
$z=0.75$