We've only used square roots so far but this teaches you the third root, fourth root, and so forth. Generally, its called the nth root. For example, the third root of 8 is 2, because 2 to the third power is 8. There can be two nth roots. You'll learn about a principal nth root, and about positive and negative roots. When we're finding the nth root of an even power, sometimes we need to use the absolute values of the result. This guarantees that the answer is non-negative. Check the examples to practice and understand this better.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.