It's "bracket, exponent, multiply&divide, add&subtract" - with x and / as well as + and - being of equal value. multiplication is NOT generally performed before division (be ist just because 3*4 = 3/0.25)

One of the basic conventions of maths was taught to us as "BOMDAS", the order being Brackets , Of, Multiply, Divide, Add, Subtract. The second one is notionally incorrect as it does not follow the convention.

If we don't have parentheses, default order is from left to right, with multiplication/division first and addition/subtraction second. So correct result is on the right: 48/2*(9+3)=24*12 = 288. For result on the left to be correct, you'd need another pair of parentheses: 48/(2*(9+3)) = 48/(2*12) = 48/24 = 2

The left one is in fact correct, multiplication should be performed before division.

it recognise is as a multiplication. the problem is, the order how to calculate if you begin with 48/2 = 24 so you have: 24 (9+3) = 24 (12) = 288. but if you beginn the other way round, you get 48/2(9+3)= 48/2(12) = 48/24 = 2

Maybe the machine in the right don't recognize the "2(" as a multiplication.