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Minamax31
@Minamax31
April 2019
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Svp aidez moi je n'y comprend rien ...
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nathalienouts
Verified answer
B = (6x-7)(3x-2)
B = 18x²-12x-21x+14
B = 18x²-33x+14
2)
x = 0
B = 0-0+14 = 14
x = 1
B = 18-33+14
B = 32-33
B = -1
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Thanks 1
Minamax31
merci :)
Minamax31
mais c'est (6x-7)(3-2x) et non pas (6x-7)(3x-2)
ficanas06
(6x - 7 ) (3-2x) = 18x - 21 -12x² +14x =
Pour x= 0:
(6x - 7 ) (3-2x) = -21
-12x² +32x -21 = -21
Pour x=1
(6x - 7 ) (3-2x) = (6-7)(3-2) = (-1) * 1 = -1
-12x² +32x -21= -12 + 32 - 21 = -1
0 votes
Thanks 1
Minamax31
merci
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Verified answer
B = (6x-7)(3x-2)B = 18x²-12x-21x+14
B = 18x²-33x+14
2)
x = 0
B = 0-0+14 = 14
x = 1
B = 18-33+14
B = 32-33
B = -1
Pour x= 0:
(6x - 7 ) (3-2x) = -21
-12x² +32x -21 = -21
Pour x=1
(6x - 7 ) (3-2x) = (6-7)(3-2) = (-1) * 1 = -1
-12x² +32x -21= -12 + 32 - 21 = -1