\"\"

\

The expression is  \"\"

\

\"\"                   (Substitute \"\")

\

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

\

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

\

\"\"                                   (Evalute powers: \"\")\"\"

\

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

\

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

\

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

\

The  value of expression is  \"\"