B: bracket

O: order

D: divide

M: multiply

A: addition

S: subtract

It implies that...

first of all solve the bracket from left to right side, then look for the order i.e. power (square, cube)or root  etc.after that see for any sign of division if any then divide it and if not any sign of division found then look for the multiplication and multiply it after that solve the sign given for addition that means add that and at last for subtraction .......subtract that. That means you have taken each and every sign and solved it .So I think you have solved your problem.