Bonjour pouvez vous m’aider svp? Soit C = (6x – 7)2 - (2x - 3)2
1) Développer, réduire et ordonner C.
C= (6x - 7) - (2x - 3)2
C = (36x2 - 84x +49) - (4x2 - 12x +9)
C = 36x2 - 84x + 49 - 4x2 + 12x - 9
C = 32x2 - 72x + 40
3)
(4x
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