Corrigé Eaf 2004

= (6y)3 ; c) (–2)4 × z4 = (–2z)4 ; d) 49x2 = (7x)2 ; e) 8y3 = (2y)3 ; f) 81z4 = (3z)4. 38 x2 a) 51 (2 1) (2 3) 9 5 4 57     1 – 9 + 3 = 1 – 9 + 9 = 9 – 9 = 9 . 4 des pays de l’Union Européenne ont adhéré en 2004 9 ou en 2007. Multiplication 7 –2 14 × =   ; –3 13 39 –10 –13 130 e)  × =  ; –7 –11 77 2 11 22 b)  –  × = –  ; 3 9 27 –2 3 6 d)  × = –   ; –5 –11 55 –7 –5 35 f)  –  × =  . 6 –4 24 2 3 3     a)  5 × 2 = 5 ;