13-5x(9-3)^2/5x8-4(-11)?

13 - 5 x (9 - 3)^2/5 x 8 - 4(-11)
= 13 - 5 x 6^2/5 x 8 - (-44)
= 13 - 5 x 36/5 x 8 + 44
= 13 - 36 x 8 + 44
= 13 - 288 + 44
= -275 + 44
= -231

Question is unclear.

Will have a GUESS at :-

13 - 5 (9 - 3) ²
--------------------
40 + 44

13 - (5 x 36)
-----------------
84

13 - 180
--------------
84

- 167
----------
84

PS
You MUST use brackets.

what do you mean what is it? Do you want us to differentiate or what?