__Order of Operations:__

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

1. Evaluate the expressions inside the **P**arenthesis/**B**rackets **(P)**.

2. Evaluate **P**owers/**E**xponents **(E)**.

3. **M**ultiply and/or **D**ivide in order from left to right **(MD)**.

4. **A**dd and/or **S**ubtract in order from left to right **(AS)**.

A simple technique for remembering the order of operations is turned into phrase "**P**lease **E**xcuse **M**y **D**ear **A**unty **S**ally"

The expression is .

(Replace *b* with 4)

Since there are no grouping symbols. First operation is evaluate power.

(Evaluate power: )

The simplified expression is 256.

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