Question

Simplify the expression z^2-z(z+3)+3z

Answer 1

z^2-z(z+3)+3z

z^2 - z^2 - 3z + 3z

0 + 0

0

z^2-z(z+3)+3z = 0

Answer 2

$z^2-z(z+3)+3z$ 

$z^2-z^2-3z+3z$ 

$-3z+3z$
 
$0$  $\text{Solution}$