закончите преобразования.
а)3a*(-5b)=3*(-5)*ab=
-4a*6=-4*6*a=
-5k*8m=-5*8*km=
б)0.5a*6b*(-c)=0.5*6*(-1)abc=
-10n*1/5p*3/4k=(-10)*1/5*3/4npk=
-c*(-9b)*1/3a=(-1)*(-9)*1/3cba=