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Hajardu37
@Hajardu37
June 2019
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Bonsoir j'aurai besoin d'aide sur cet exercice niveau 2nd s'il vous plaît
merci d'avance à ceux qui m'aideront
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angie91
Verified answer
Tu regroupes carrés, les x etc ca donne
A = - 1 - 7 + 3 + 5 + 5 + 9 - 1 + (7x² - 4x²) + (6x + 4x + 3x)
A = 13 + 13x + 3x²
B = 5 - 4 + (x - 2x) - 6x² + 8x² + 9x² + 4x² + 2x²
B = 1 - x + 17x²
pareil pour C et D
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Thanks 1
hajardu37
Ok merci bcp
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Verified answer
Tu regroupes carrés, les x etc ca donneA = - 1 - 7 + 3 + 5 + 5 + 9 - 1 + (7x² - 4x²) + (6x + 4x + 3x)
A = 13 + 13x + 3x²
B = 5 - 4 + (x - 2x) - 6x² + 8x² + 9x² + 4x² + 2x²
B = 1 - x + 17x²
pareil pour C et D