\"\"

\

The expression is  \"\"

\

\"\"                           (Substitute \"\")

\

\"\"                           (Product of two opposite signs is negative)

\

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

\

\"\"                                    (Evaluate powers: \"\")

\

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

\

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

\

\"\"                                                      (Divide: \"\")      \"\"     

\

The  value of expression is \"\"