Question

1) 4b+(r-b)2
2) (4+12)a+7c
3) (6+5+8)c-9a

Answer 1

1)4b+ 2r-2b 2)4a+12a+7c. 3)6c+5c+8c-9a 2b+ 2r. 16a+7c. 19c-9a 2 (b+r)