January 2021 0 64 Report
Salut j'ai besoins d'aide en maths . Calculer de manières efficace ( sans poser la multiplication , utilisée des identité remarquable)

A= 39(carré)
B=59(carré)
C=61×59
D= 61 (carré)

Factoriser

A=x(carré) - 2
B= 5x(carré) -16

Merci !
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