Développe les expressions A = 5x (7 - x) B = 8x (8 - 8x) svp
Mathématiques
jungkookookie13
Question
Développe les expressions
A = 5x (7 - x)
B = 8x (8 - 8x)
svp
A = 5x (7 - x)
B = 8x (8 - 8x)
svp
1 Réponse
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1. Réponse nguyenso9
Bonjour,
A = 5x (7 - x)
A = 5x * 7 - 5x * x
A = 35x - 5x²
B = 8x (8 - 8x)
B = 8x * 8 - 8x * 8x
B = 64x - 64x²