# How do I use Pascal's triangle to expand #(x + 2)^5#?

##### 1 Answer

Jul 9, 2015

You write out the sixth row of Pascal's triangle and make the appropriate substitutions.

#### Explanation:

Pascal's triangle is

The numbers in the fifth row are 1, 5, 10, 10, 5, 1.

They are the coefficients of the terms in a fifth order polynomial.

But our polynomial is