Math algebra that's the homework my professor wants to answer please explaining in your own words them write an example

• As you become more familiar with factoring, you will notice there are some factoring problems that follow specific patterns. These patterns are known as
  
  • a difference of squares;
  • a perfect square trinomial;
• Choose one of the forms above. In your own words, explain the pattern that allows you to recognize the binomial or trinomial as having special factors.  Then provide an example of a binomial or trinomial expression that may be factored using the special technique you explained.