Exercice 1:
Calculer :
a) 72
b) 5,22
c) (-8)
d) -(8)2
Aidez moi svp
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Bonjour
a. 7² = 7 x 7 = 49
b. 5,2² = 5,2 x 5,2 = 27,04
c. (- 8)² = (- 8) x (- 8) = 64
d. - (8)² = - (8 x 8) = - 64.