Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
0. Review of Algebra
Radical Expressions
0:52 minutes
Problem 59b
Textbook Question
Textbook QuestionUse the rules for radicals to perform the indicated operations. Assume all variable expressions represent positive real numbers. √9/25
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Radical Expressions
Radical expressions involve roots, such as square roots, cube roots, etc. The square root of a number 'x' is a value that, when multiplied by itself, gives 'x'. Understanding how to manipulate these expressions is crucial for simplifying and performing operations on them.
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Simplifying Radicals
Simplifying radicals involves reducing the expression to its simplest form. This often includes factoring out perfect squares from under the radical sign. For example, √(a/b) can be simplified to √a/√b, which is essential for performing operations like addition, subtraction, or division of radical expressions.
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Properties of Square Roots
The properties of square roots include rules such as √(a*b) = √a * √b and √(a/b) = √a / √b. These properties allow for the manipulation of square roots in expressions, making it easier to perform operations and simplify results, especially when dealing with fractions.
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