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
1:50 minutes
Problem 30b
Textbook Question
Textbook QuestionFind each product. See Examples 3–5. (5m-6)(3m+4)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Polynomial Multiplication
Polynomial multiplication involves distributing each term in one polynomial to every term in another polynomial. This process is often executed using the distributive property, ensuring that all combinations of terms are accounted for. For example, in the expression (5m - 6)(3m + 4), each term in the first polynomial must be multiplied by each term in the second polynomial.
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Combining Like Terms
After multiplying polynomials, the next step is to combine like terms, which are terms that have the same variable raised to the same power. This simplification process helps in reducing the expression to its simplest form. For instance, if the multiplication yields terms like 15m^2, 20m, and -18, the like terms can be combined to produce a more concise polynomial.
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Combinations
Distributive Property
The distributive property states that a(b + c) = ab + ac, allowing for the multiplication of a single term by a sum. This property is fundamental in polynomial multiplication, as it facilitates the expansion of expressions. In the given problem, applying the distributive property correctly ensures that each term is multiplied accurately, leading to the correct final polynomial.
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