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
1:54 minutes
Problem 48a
Textbook Question
Textbook QuestionIn Exercises 45–66, divide and, if possible, simplify. __ ³√54 ³√2
Verified Solution
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
1mPlay a video:
Was this helpful?
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 or cube roots. In this case, we are dealing with cube roots, which are expressed as ³√x, meaning the number that, when multiplied by itself three times, gives x. Understanding how to manipulate these expressions is crucial for simplifying and dividing them.
Recommended video:
Guided course
05:45
Radical Expressions with Fractions
Simplifying Radicals
Simplifying radicals involves reducing the expression to its simplest form. This can include factoring out perfect cubes from under the radical sign. For example, ³√54 can be simplified by recognizing that 54 = 27 × 2, allowing us to extract the cube root of 27, which is 3.
Recommended video:
Guided course
5:48
Adding & Subtracting Unlike Radicals by Simplifying
Division of Radicals
Dividing radical expressions requires applying the property that states ³√a / ³√b = ³√(a/b). This means you can combine the radicands (the numbers inside the radical) into a single radical expression. This property is essential for simplifying the division of cube roots in the given problem.
Recommended video:
Guided course
05:20
Expanding Radicals
Related Videos
Related Practice