Hi, what do you want to do?
Khan Academy
Khan Academy: Algebra: Factoring Perfect Square Trinomials
Video demonstrates how to recognize and factor perfect square trinomials. [4:54]
Khan Academy
Khan Academy: Algebra: Factoring Special Products 2
Video demonstrates how to recognize and factor perfect square trinomials. The example problem is in the form ax^4 - bx^2 + c. [2:25]
Khan Academy
Khan Academy: Algebra: Factoring Special Products 1
Video demonstrates how to notice and factor a perfect square trinomial. [3:52]