AMBRELG AMBRELG 08-03-2022 Mathématiques Answered aider moi svpExercice 1: Savoir écrire plus simplement1) 5× a = 2) y×7 = 3) a×b= 4) 4×2= 5) x×1 = 6) 4×(a+b) = 7) 3×6×x = 8) 7×a×a = 9) 9×x×0×y = 10) (x+ 1)×(x+2) = 11) 3×7 =