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Dreamus
@Dreamus
April 2019
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Développer et réduire :
(3x - 2) ( 2x - 1/4) - (x+1)²
1/4 est une fraction
Merci de votre aide ! ^^
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Commentaires (9)
Verified answer
Bonjour,
(3x - 2) ( 2x - 1/4) - (x+1)² =
(6x²-3x/4 -4x +2/4) - (x²+2x+1) =
(24x²-3x-16x+2)/4-(4x²+8x+4)/4 =
(24x²-19x+2-4x²-8x-4)/4 =
(20x²-27x-2)/4
1 votes
Thanks 0
Dreamus
t'en es sur de ton développement ?
Dreamus
j'ai pas trouvé la même chose o_o
Dreamus
(6x² - 19x/4 + 2/4) -(x² + 2x +1)
Dreamus
ce qui donne
Dreamus
5x² - 27x/4 - 2/4
Dreamus
J'ai un doute sur ce que t'as fais
Dreamus
Je voulais juste vérifier mes réponses --'
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Verified answer
Bonjour,(3x - 2) ( 2x - 1/4) - (x+1)² =
(6x²-3x/4 -4x +2/4) - (x²+2x+1) =
(24x²-3x-16x+2)/4-(4x²+8x+4)/4 =
(24x²-19x+2-4x²-8x-4)/4 =
(20x²-27x-2)/4