Răspuns :
Salut! :)
a) a × b × c × d = 12 × 30 = 360
b) 7ac - 2bd = 7 × 12 - 2 × 30 = 84 - 60 = 24
c) 15ac : 2bd = 15 × 12 : 2 × 30 = 180 : 2 × 30 = 90 × 30 = 2700
Salut! :)
a) a × b × c × d = 12 × 30 = 360
b) 7ac - 2bd = 7 × 12 - 2 × 30 = 84 - 60 = 24
c) 15ac : 2bd = 15 × 12 : 2 × 30 = 180 : 2 × 30 = 90 × 30 = 2700