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Sagot :

Bonjour,

D= (y – 5)(y - 2)

double distributivité:

y*y =y²

y*-2 = -2y

-5 * y = -5y

-5 *-2 = 10

=>

y² -7y +10

EPHTAMINA890

D=(y-5)(y-2)

D=(y×y)-(y×2)-(5×y)+(5×2)

D=y^2-2y-5y+10

D=y^2-7y+10

Il faut appliquer la distributivité

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