\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Show, by operations on \(\mathrm{Vect}\), that $$ \mathbb{R}_2[X] = \mathrm{Vect}\big( (X - 1)^2,\, (X - 1)(X + 1),\, (X + 1)^2 \big). $$
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