Développer les produits :
2(a + b) =
5(3a + 4b) =
-5(a+b) =
-7(2a-3b) =
5(3x+2) =
-2(5x-4) =
Merci d’avance ;) !
2(a + b) =
5(3a + 4b) =
-5(a+b) =
-7(2a-3b) =
5(3x+2) =
-2(5x-4) =
Merci d’avance ;) !
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bonsoir,
2(a + b) =
2a+2b
5(3a + 4b) =
15a +20b
-5(a+b) =
-5a -5b
-7(2a-3b) =
-14a +21b
5(3x+2) =
15x +10
-2(5x-4) =
-10x +8