Répondre :

(3-2)*=
(3-2)x(3-2)=
1x1=
1
Non, (3-2) au carré
= (3-2 )(3-2)
= 3x3 - 3x2 - 2x3 + 2x2
= 9 - 6 -6 +4
= 9+4