\"\"

\

The function is \"\".

\

\"\"      (Replace x with (k + 2))

\

\"\"              (Apply distributive property: a(b + c) = ab + ac)

\

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

\

\"\"                            (Add: 6 + 7 = 13)\"\"

\

The value of the function is \"\".