Lesson 7.1 videos...
Simplifying radical expressions http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-588s.html
Lesson 7.2, part 1
a- Simplifying radical expression with cube roots. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-589s.html
b- Multiplying radical expressions with cube roots. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-590s.html
Lesson 7.2, part 2
c- Dividing radical expressions with cube roots. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-591s.html
d- Dividing radical expressions by rationalizing the denominator... http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-592s.html
Lesson 7.3, part 1
A- Adding and subtracting radical expressions. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-593s.html
B- Simplifying before adding radical expressions... http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-594s.html
Lesson 7.3 part 2.
C- Multiplying binomial radical expressions. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-595s.html
D- Multiplying conjugates... http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-596s.html
E- Dividing binomial radical expressions. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-597s.html