Use the links below for extra help/practice
https://www.youtube.com/watch?v=i4F8x_6PHpY
https://www.khanacademy.org/math/algebra/exponent-equations/simplifying-radical-expressions/v/how-to-rationalize-a-denominator
http://www.regentsprep.org/regents/math/algtrig/ato3/rdlesson.htm
http://www.purplemath.com/modules/radicals5.htm
HW: Complete 1 - 17 on WS 6.2.