Roots of Equations, and Zeroes of Polynomials, including Rational Root Theorem
Video 1: http://youtu.be/Pbgl1DacQ2Y
Video 2: http://youtu.be/ENepLfit5mk
Video 3: http://youtu.be/aBsvJL5DvCw
Video 4: http://youtu.be/tsFu7fwYpfs