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Bibi38
@Bibi38
April 2019
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Bonjour tous le monde j'ai un exercice en math mais je ni arrive merci de m'aider;
La consigne est Recopier et compléter les égalités suivantes.
1) (x+....)au carré = .....+6x+......
2) (.....- ......)au carré = 4x au carré - ....+25
3) .....- 64 = (7x - .... ) (..... + .....)
Merci de m'aider
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Verified answer
Bonjour,
(x+3)² = x²+6x+9
(2x-5)² = 4x²-20x+25
49x²-64 = (7x-8)(7x+8)
1 votes
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Je n'est pas compris la consigne meci de m'aider. Haz una frase imitando el modelo : dar miedo / los lobos : A vosotros os dan miedo los lobos. 1- apetecer / ir al cine ( 3p.s) MERCI
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Verified answer
Bonjour,(x+3)² = x²+6x+9
(2x-5)² = 4x²-20x+25
49x²-64 = (7x-8)(7x+8)