Respuesta :

[tex](x^2+3y-3) - (-2x^2+3y-1) [/tex]
Apply plus/minus rule.
-(-a)=a amd -(a)=-a
[tex](x^2+3y-3) - (-2x^2+3y-1)=x^2+3y-3+2x^2-3y+1 [/tex]
[tex]=x^2+3y-3+2x^2-3y+1 \\ Add \ like \ terms \\ =3x^2 - 2 \\[/tex]
[tex]Answer: \ 3x^2-2[/tex]