Resposta: # (12 (x + 2)) / 5 # Explicació: En primer lloc, escric la fórmula generalitzada. # a / b * c / d = (ac) / (bd) # Per tant, ho tenim # (4 (x + 2)) / (5x) * (6x ^ 2) / (2x) = (4 (x + 2) (6x ^ 2)) / (5x (2x)) = (24x ^ 2 (x + 2)) / (10x ^ 2) # # (24cancel (x ^ 2) (x + 2)) / (10cancel (x ^ 2)) = (24 (x + 2)) / 10 = (12 (x + 2)) / 5 #
