# Statistics Examples

Step 1

Step 1.1

Factor out of .

Step 1.2

Factor out of .

Step 1.3

Factor out of .

Step 2

Rewrite as .

Step 3

Rewrite as .

Step 4

Since both terms are perfect squares, factor using the difference of squares formula, where and .

Step 5

Step 5.1

Simplify.

Step 5.1.1

Rewrite as .

Step 5.1.2

Factor.

Step 5.1.2.1

Since both terms are perfect squares, factor using the difference of squares formula, where and .

Step 5.1.2.2

Remove unnecessary parentheses.

Step 5.2

Remove unnecessary parentheses.