Verified answer

1)3(2a+b-8c)=6а+3b-24c

2)-4(-x+3y-4z)=4х-12y+16z

3)(m-5n-6k)*(-1,4)=-1.4m+7n+8.4k

4) (-a - 3.4b + 3c) * (-d) = -a* (-d) - 3.4b * (-d) + 3c * (-d) = ad + 3.4bd - 3cd .

5) -0.8a * (4p - 5b - 1.2) = -0.8a * 4p - 0.8a * (-5b) - 0.8a * (-1.2) = -3.2ap + 4ab + 0.96a

6) -14(3/7x-9/14y+0,5z-1,1)=-6x+9y-7z+15,4

Ответ:

1)3(2a+b-8c)=6a+3b-24c

2)-4(-x+3y-4z)=4x-12y+16z

3)(m-5n-6k)*(-1,4)=-1,4m+7n+8,4k

4)-0,8t(4p-5t-1,2)=-3,2tp+4t²+0,96t

5)(-a-3,4b+3c)*(-d)=ad+3,4bd-2cd

6)-14(3/7x-9/14y+0,5z-1,1)=-6x+9y-7z+15,4