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
Algebraic Expressions
1:44 minutes
Problem 132
Textbook Question
Textbook QuestionSimplify each expression. -1/4(20m+8y-32ɀ)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Distributive Property
The distributive property states that a(b + c) = ab + ac. This property allows us to multiply a single term by each term inside a set of parentheses. In the given expression, -1/4 is distributed to each term within the parentheses, which simplifies the expression effectively.
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Combining Like Terms
Combining like terms involves adding or subtracting terms that have the same variable raised to the same power. After applying the distributive property, you may encounter terms that can be simplified further by combining them, which streamlines the expression and makes it easier to understand.
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Combinations
Negative Coefficients
A negative coefficient indicates that the term it multiplies will have its sign reversed when simplified. In this expression, the -1/4 will change the signs of the terms it multiplies, which is crucial for correctly simplifying the expression and ensuring the final result is accurate.
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