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The expression is $\"\"$

$\"\"$ (Replace t with 2)

To simplify the expression following order of operations to performed:

1. Evaluate the expressions inside grouping symbols.

2. Evaluate powers.

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

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

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In the given expression there are no grouping symbols.

First operation is evaluating power

$\"\"$ (Evaluate power $\"\"$ )

Next operation is multiplication.

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

Next operation is subtraction.

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

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The value of the expression is $\"\"$ .