2) m(-0,75n) •(-0,6k)=??? 4) -5(0,9m-1,1n)-1,5m+1,9n

Question

2) m(-0,75n) •(-0,6k)=???

4) -5(0,9m-1,1n)-1,5m+1,9n

Answer 1

2) m(-0,75n) •(-0,6k)=-0,75nm*(-0,6k)=0,45nmk

4) -5(0,9m-1,1n)-1,5m+1,9n=-4,5m+5,5n-1,5m+1,9n=-6m+7,4n

 

Answer 2

m*(-0.75n)*(-0.6k)=0.45mnk

-5*(0.9m-1.1n)-1.5m+1.9n=-4.5m+5.5n-1.5m+1.9n=-6m+7.4n