2 (3 - b)*(3 + b) + (5 + b)
(3 - b)*(3 + b) + (5 + b)^2
1*(b + 17/5)
34 + 10*b
25.0*(1 + 0.2*b)^2 + (3.0 + b)*(3.0 - b)
2 2 9 + (5 + b) - b
9 + (5 + b)^2 - b^2