\"\"

\

The expression is \"\"

\

\"\"                  (Substitute g = 2 and r = 3)

\

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 pf operations is turned into phrase

\

“Please Excuse My Dear Aunty Sally”\"\"

\

\

\

First operation is Evaluate the expressions Parenthesis.

\

\

\"\"                       (Add: \"\") \ \

\

\"\"                      (Evaluate power: \"\") 

\

Next operation is Multiplication.

\

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

\

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

\

Next operation is Subtraction.

\

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

\

\"\"

\

The value of the expression is 149.