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Lesson Preview | Objectives Lesson Preview Powers, roots, and radicals are common elements that you will deal with in algebra, geometry, or whatever math course you may take in the upper grades. The use of 'powers' in math is really a shortcut, designed to make mathematics more simple The use of 'roots' is a necessary calculation required by different kinds of math problems. And a 'radical' serves as a mathematical sign that directs problem solvers to find a certain root. While considering these topics, we will also introduce different kinds of numbers. There are rational and irrational numbers. They are important only because you should know that some kinds of numbers are exact and some are not, and what to do about it. Then, there are 'real' and 'imaginary' numbers. The former names specific quantities, and the latter have only imaginary values. The real numbers are those you use all the time, and the imaginary numbers will not concern you, except for you to know what they are when you see them. Your major effort in this lesson, however, is to learn how to deal with powers, roots, and radicals in order to use them in helping to solve math problems. Objectives (top) When you complete this lesson, you will be able to:
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