I am confused about this problem, and don't know how to simplify it.


-9[12-8(-3)*(-5)+1]

To simplify the given problem, you can use the order of operations (also known as PEMDAS or BODMAS) to simplify it step by step. Here's how you can solve it:

1. Start by simplifying any expressions within parentheses. In this case, the expression inside the parentheses is "-8(-3)*(-5)".
- When you multiply two negative numbers together, the result is positive.
- So, "-8(-3)*(-5)" becomes "24*(-5)".

2. Next, simplify the expression within the parentheses further.
- Multiply 24 by -5 to get -120.
- So, the expression inside the parentheses can be simplified to -120.

3. Replace the simplified expression inside the parentheses with its value (-120).
- Now, the original expression becomes: -9[12 + (-120) + 1].

4. Simplify any addition or subtraction operations within the brackets.
- Add 12 and -120 to get -108.
- So, the expression within the brackets becomes: -9[-108 + 1].

5. Continue simplifying within the brackets.
- Add -108 and 1 to get -107.
- So, the expression within the brackets simplifies to: -9(-107).

6. Finally, simplify the multiplication operation.
- Multiply -9 by -107 to get 963.
- So, the final answer is 963.