For this problem, you would need to use PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction).
First, start with the parentheses. In the parentheses, you would start with 8 x 54
8 x 54 = 432
Then, subtract 432 from 92.
92 - 432 = -340
From there, do 10 multiplied by -340 (the parentheses indicate multiplication).
10 x -340 = -3400
You are now left with 15 - -3400 - 6.
Now, subtract from left to right.
15 - - 3400 = 15 + 3400 = 3415
3415 - 6 = 3409
3409 is the answer.