Réponse :
Bonjour
9-37y +4y²
Bonjour,
4(1-7y)+(4y-5)(y-1) = 4-28y+(4y²-4y-5y+5)
= 4y²-37y+9
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Réponse :
Bonjour
9-37y +4y²
Bonjour,
4(1-7y)+(4y-5)(y-1) = 4-28y+(4y²-4y-5y+5)
= 4y²-37y+9