本文为大家介绍的GRE数学复习考点是“Factoring(x²-y²) ”。

新版GRE数学复习重要考点：Factoring(x²-y²)

The difference of two squares can be factored as x²-y²=(x+y)(x-y).

Example:

x²-4=(x+2)(x-2).

9x²-16y²=(3x+4y)(3x-4y).

Remember:

This appears frequently in GRE in many forms.

This is really useful form to remember when factoring.