Ch-6--Calcul-litteral--Exercices-supplementaires--corrige-.pdf
7op - 19p a) 5. (2a +9)= b) 2x. (3x + y) = 10a + 45. 6x² + 2xy c) 8a. (6a - 2b) = 48a2 - 16ab d) -8d. (-5d - 6e) = 40d² + 48de e) 5ab . (6a + 3b) = 30a2b+ ...
7op - 19p a) 5. (2a +9)= b) 2x. (3x + y) = 10a + 45. 6x² + 2xy c) 8a. (6a - 2b) = 48a2 - 16ab d) -8d. (-5d - 6e) = 40d² + 48de e) 5ab . (6a + 3b) = 30a2b+ ...