Question

Упростите выражение: 1) 4,5a(-2d) 2)-2c*(-0,1`d)*5 3)-0,5n*6*(-5m)*1 1|3 4)-3x*(-5,2y)*(-1|2)*1|13z

Answer 1

1) 4,5а*(-2d)= -9аd
2) -2с*(-0,1 d)*5= 0,2c*d*5= c*d
3) -0,5n*6*(-5m)*1 1/3 =  -3n*(-5m)*4/3=15nm*4/3= 20nm
4) -3х*(-5,2y)*(-1/2)* 1/13z=15,6ху*(-1/2)*1/13z=78/5ху*(-1/2)*1/13z
= -39/5ху*1/13z= -3/5хуz=