$\"\"$

The expression is $\"\"$ . \ \

$\"\"$ (Substitute $\"\"$ )

To simplify the expression follow the order of operations: (PEMDAS)

1. Evaluate the expressions inside Brackets/Parenthesis (P).

2. Evaluate Powers/Exponents (E).

3. Multiply and/or Divide in order from left to right (MD).

4. Add and/or Subtract in order from left to right (AS).

A simple technique for remembering the order of operations is turned into phrase

“Please Excuse My Dear Aunty Sally”

$\"\"$

First operation is evaluate powers

$\"\"$ (Evaluate Powers: $\"\"$ )

Next operation is multiplication.

$\"\"$ (Multiply: $\"\"$ )

Next operation is subtraction.

$\"\"$ (Subtract: $\"\"$ ) \ \ $\"\"$

The simplified expression value is 496.