Question

- (5,6c - 4,1b) - (4,1b - 5,6c) =

Answer 1

$-(5,6c-4,1b)-(4,1b-5,6c)=-5,6c+4,1b-4,1b+5,6c=(-5,6c+5,6c)+(4,1b-4,1b)=0$

Answer 2

-5.6с + 4.1b - 4.1b + 5.6c = 0