\"\"

\

The given points are \"\".

\

The distance between two points \"\" is

\

\"d.

\

\"\"  (Substitute \"\")\"\"              (Product of two same signs is positive)

\

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

\

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

\

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

\

The distance between two points \"\" is \"\" units.