1) 3b+2(b-2)2) 4b-(4+2b)3) -b-(5-2b)?

Question

1) 3b+2(b-2)
2) 4b-(4+2b)
3) -b-(5-2b)?

Answer 1

3b+2(b-2)=3b²-4
4b-(4+2b) =2b
-b-(5+2b) =5+b

Answer 2

1) 3b+2b-4=5b-4
2)4b-4+2b=2b-4
3)-b+5+2b=b+5