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
Factoring Polynomials
2:54 minutes
Problem 6
Textbook Question
Textbook QuestionWork each problem. Match each polynomial in Column I with its factored form in Column II. a. x^2 + 10xy +25y^2 b. x^2-10xy +25y^2 c.x^2-25y^2 d. 25y^2-x^2 A. (x+5y ) (x-5y) B. (x+5y)^2 C. (x-5y)^2 D. (5y+x)(5y-x)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Factoring Polynomials
Factoring polynomials involves rewriting a polynomial as a product of its simpler components, or factors. This process is essential for solving polynomial equations and simplifying expressions. Common techniques include identifying perfect squares, using the difference of squares, and applying the distributive property. For example, the polynomial x^2 + 10xy + 25y^2 can be factored as (x + 5y)^2.
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Perfect Square Trinomials
A perfect square trinomial is a specific type of polynomial that can be expressed as the square of a binomial. The general form is a^2 ± 2ab + b^2, which factors to (a ± b)^2. Recognizing these patterns is crucial for quickly factoring expressions like x^2 + 10xy + 25y^2, which fits the perfect square trinomial pattern and factors to (x + 5y)^2.
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Difference of Squares
The difference of squares is a factoring technique used for expressions in the form a^2 - b^2, which factors to (a + b)(a - b). This concept is vital for polynomials like x^2 - 25y^2, where it can be factored into (x + 5y)(x - 5y). Understanding this concept allows for efficient simplification and solving of polynomial equations.
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