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
2:47 minutes
Problem 32a
Textbook Question
Textbook QuestionIn Exercises 1–38, multiply as indicated. If possible, simplify any radical expressions that appear in the product. (4√3 + 3√2) (4√3 - 3√2)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Multiplication of Binomials
The multiplication of binomials involves applying the distributive property, often referred to as the FOIL method (First, Outside, Inside, Last). This technique helps in systematically multiplying each term in the first binomial by each term in the second binomial, ensuring that all combinations are accounted for in the resulting expression.
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Radical Expressions
Radical expressions contain roots, such as square roots or cube roots. Simplifying these expressions often involves factoring out perfect squares or cubes, allowing for a clearer representation of the expression. Understanding how to manipulate and simplify radicals is crucial for solving problems that involve them.
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Difference of Squares
The difference of squares is a specific algebraic identity that states that the product of two conjugates, (a + b)(a - b), equals a² - b². This identity simplifies calculations significantly, especially when dealing with radical expressions, as it allows for the direct computation of the squares of the terms involved.
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