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Manou97234
@Manou97234
April 2019
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Developper et reduire D
D=(4+4y)(-y-11)-(y-15)(-y-11)
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caro67000
Verified answer
Développement
D=(4+4y)(-y-11)-(y-15)(-y-11)
D = -4y - 44 - 4y² - 44y +y² +11y -15y - 165
D =
- 3y² -52 y - 209
Factorisation
D = (-y-11) (4+4y-y +15)
D =
(-y -11) (3y +19)
vérification
: si on développe (-y-11) (3y+19) = -3 y² -19 y - 33y - 209 =
-3y² -52y-209
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maudmarine
Développer et réduire :
D = (4 + 4y) (-y - 11) - (y - 15) (-y - 11)
D = -4y - 44 - 4y² - 44y +y² +11y -15y - 165
D = - 3y² - 52y - 209
0 votes
Thanks 0
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Verified answer
DéveloppementD=(4+4y)(-y-11)-(y-15)(-y-11)
D = -4y - 44 - 4y² - 44y +y² +11y -15y - 165
D = - 3y² -52 y - 209
Factorisation
D = (-y-11) (4+4y-y +15)
D = (-y -11) (3y +19)
vérification : si on développe (-y-11) (3y+19) = -3 y² -19 y - 33y - 209 = -3y² -52y-209
D = (4 + 4y) (-y - 11) - (y - 15) (-y - 11)
D = -4y - 44 - 4y² - 44y +y² +11y -15y - 165
D = - 3y² - 52y - 209