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
Polynomials Intro
2:24 minutes
Problem 3b
Textbook Question
Textbook QuestionIn Exercises 1–8, multiply the monomials. (3x²y⁴)(5xy⁷)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Monomials
A monomial is a polynomial with only one term, which can be a constant, a variable, or a product of constants and variables raised to non-negative integer powers. In the expression (3x²y⁴)(5xy⁷), both 3x²y⁴ and 5xy⁷ are monomials. Understanding monomials is essential for performing operations like multiplication.
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Multiplication of Monomials
When multiplying monomials, you multiply the coefficients (numerical parts) and add the exponents of like variables. For example, in (3x²y⁴)(5xy⁷), you multiply 3 and 5 to get 15, and for the variables, you add the exponents of x (2 + 1) and y (4 + 7) to find the new exponents. This process is crucial for simplifying the expression.
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Exponent Rules
Exponent rules govern how to handle powers of numbers and variables during multiplication and division. The key rules include the product of powers (adding exponents) and the power of a product (distributing exponents). Mastery of these rules is vital for correctly simplifying expressions involving monomials, such as in the given multiplication problem.
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