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
Multiplying Polynomials
3:41 minutes
Problem 58a
Textbook Question
Textbook QuestionIn Exercises 15–58, find each product. (2x−3)^3
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Binomial Expansion
Binomial expansion refers to the process of expanding expressions that are raised to a power, particularly those in the form of (a + b)^n. The expansion can be systematically achieved using the Binomial Theorem, which states that (a + b)^n = Σ (n choose k) * a^(n-k) * b^k, where k ranges from 0 to n. This theorem allows for the calculation of each term in the expansion without direct multiplication.
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03:41
Special Products - Cube Formulas
Cubic Functions
A cubic function is a polynomial function of degree three, typically expressed in the form f(x) = ax^3 + bx^2 + cx + d. When expanding a binomial like (2x - 3)^3, the result will be a cubic polynomial. Understanding the characteristics of cubic functions, such as their shape and behavior, is essential for interpreting the results of the expansion.
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Function Composition
Algebraic Manipulation
Algebraic manipulation involves the process of rearranging and simplifying algebraic expressions using various mathematical operations. This includes applying the distributive property, combining like terms, and factoring. Mastery of these techniques is crucial for effectively expanding polynomials and simplifying the resulting expressions, as seen in the expansion of (2x - 3)^3.
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Introduction to Algebraic Expressions
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