Exercice 5 : Factorise puis calcule. 1) A = 17x3 + 7x17 2) B= 6,2x8 + 8x3 Exercice 6: Factorise les expressions suivantes. 3) C = 11x7 + 4×11 + 9×11 - 11x5
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Factorise puis calcule.
1) A = 17x3 + 7x17 = 17 x (3+7) = 17x10 = 170
2) B= 6,2x8 + 8x3 = 8 x (6,2+3) = 8 x .. =
Exercice 6: Factorise les expressions suivantes.
3) C = 11x7 + 4×11 + 9×11 - 11x5
= 11 x (7+4+9-5) = 11 x ... = ..
bonjour au fait :(