Sa se calculeze:a) (1-1 1supra3)•(-6 )= b) (-12)•(5supra6+1supra4)= c) (7supra5-7supra3)•(-1 1supra4)= d)(-1 3supra5+2 1supra4)•(3 4supra7-65supra14)= e) (-2 1supra3+5supra6)•(-4supra5+1supra100)= f)(-5supra6)•(1supra2+1supra3+1supra6)-7supra6= g) (11supra14-1supra2-5supra28)•(-2 1supra3)-5supra4=