Hi there!
For this, we would be using PEMDAS:
Parentheses
Exponents
Multiplication (from left to right)
Division (from left to right)
Addition (from left to right)
Subtraction (from left to right)
1.Multiply all terms:
·
·

·
·
·

2.Multiply the terms again:
·
·
·


3.Subtract the terms:

Therefore, the answer would be -7860.