Bonjour,
A = x² + 6x + 9
A = (x + 3)²
B = x² - 49
B = (x - 7) (x + 7)
C = (3x - 4)² - 64
C = 3 (x - 4) (3x + 4)
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Bonjour,
A = x² + 6x + 9
A = (x + 3)²
B = x² - 49
B = (x - 7) (x + 7)
C = (3x - 4)² - 64
C = 3 (x - 4) (3x + 4)
stp et me donner des explications à tes réponses