Consigne
Les identités remarquables ( IR)
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SOS
Cours |
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Série 3 |
Résultats |
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a c + ad + b c
+bd |
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= a a + ab – b a - b b = a a – b b |
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= a a - ab – b a + b b = a a – 2ab + b b |
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SOS COURS |
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= a a + ab + b a + b b = a a +2ab + b b |
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SOS COURS |
EXERCICES 2:
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SOS Cours |
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Factoriser :
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IR = xx + 2×3x + 3×3 |
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IR = xx - 2×3x + 3×3 |
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IR= xx - 3×3 |
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EXERCICES 3:
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SOS Cours |
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Factoriser :
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IR = x² + 6x + 9 |
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IR = x² - 6 +
9 |
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IR= x² - 9 |
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