Order of Operations:

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

1.      Evaluate the expressions inside the Parenthesis/Brackets (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"

 The expression is 

=                   (Substitute 5 for k)

According order of operations inside the grouping symbols should be evaluated first.

First operation is adding the values within the brackets.

=                        (Add: )

Next operation is evaluating powers.

=                           (Evaluate power: )

Next operation is multiplication.

=                               (Multiply:   )

Next operation is subtraction.

=                                        (Subtract:   )

The value of the expression is 19.