Bonjour j'ai besoin de votre aide pour un exercice, Exercice :
Recopier et factoriser les expressions :
x²+ 2x +1 =
x²-6x +9 =
4x² -4x +1 =
25x²+10x +1 =
x² -1 =
4x² -9 =
(h+3)² -9 =
(h+2)² -4 =

Merci d'avance pour votre aide :)
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