As with factorial expressions involving numbers, simplifying algebraic expressions is a lot of writing. The next example shows how to use shorthand to simplify.
The simplified form of the expression is n^{3 } + 3n^{2 } + 2n . 

Read page 79 Example 3 in your textbook, Principles of Mathematics 12. Complete the questions on page 82 (6a & 6d) for more practice simplifying algebraic expressions involving factorial notation. Click here to verify your answers . 