You can
put this solution on YOUR website!
See my lesson plans in algebra.com, especially the one called "Square Roots, Cube Roots, adn More--Basic Algebra." It has much more detailed explanation, examples, exercises, and ALL the answers to the exercises!
Find a perfect square that divides evenly into 120. That would be 4, which means that 120 = 4*30
You can take the square root of 4, which is 2, but you can't really do much with square root of 30. So, do what you can do, and leave the rest of it alone!
R^2 at SCC
