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Cathoche
@Cathoche
April 2019
2
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Equation a resoudre
(2Y-1)(3Y+2)
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maudmarine
Verified answer
(2y - 1) (3y + 2)
= 6y² + 4y - 3y - 2
= 6y² + y - 2
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cathoche
OK COMPRIS MERCI
maudmarine
Tant mieux, c'est le principal
cathoche
TU PEUX ME RESOUDRE (2X+5)(x+1)
maudmarine
Tu devrais essayer
maudmarine
(2x + 5) (x + 1) = 2x² + 2x + 5x + 5 = 2x² + 7x + 5
cathoche
pourquoi le x au carre deviens x
maudmarine
non le x² reste ²
cathoche
(x+7)(3X-1)
cathoche
tu n est plus la
maudmarine
(x + 7) (3x - 1) = 3x² - x + 21x - 7 = 3x² + 20x - 7
Commentaires
(2y - 1)(3y + 2)
= 2y * 3y + 2y * 2 - 1 * 3y - 1 * 2
= 6y² + 4y - 3y - 2
= 6y² + y - 2
0 votes
Thanks 0
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Verified answer
(2y - 1) (3y + 2)= 6y² + 4y - 3y - 2
= 6y² + y - 2
= 2y * 3y + 2y * 2 - 1 * 3y - 1 * 2
= 6y² + 4y - 3y - 2
= 6y² + y - 2