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
1. Equations & Inequalities
The Quadratic Formula
2:56 minutes
Problem 13b
Textbook Question
Textbook QuestionSolve each equation in Exercises 1 - 14 by factoring. 7 - 7x = (3x + 2)(x - 1)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Factoring
Factoring is the process of breaking down an expression into a product of simpler expressions, or factors, that when multiplied together yield the original expression. This technique is essential in solving polynomial equations, as it allows us to set each factor equal to zero to find the solutions. For example, the expression x^2 - 5x + 6 can be factored into (x - 2)(x - 3).
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Zero Product Property
The Zero Product Property states that if the product of two or more factors equals zero, at least one of the factors must be zero. This principle is crucial when solving equations that have been factored, as it allows us to find the values of the variable that satisfy the equation. For instance, if (x - 2)(x - 3) = 0, then x must be either 2 or 3.
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Linear Equations
Linear equations are equations of the first degree, meaning they involve variables raised only to the power of one. They can be represented in the form ax + b = 0, where a and b are constants. Understanding linear equations is vital for solving more complex equations, as they often serve as the foundation for algebraic manipulation and problem-solving techniques.
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