Podcast
Questions and Answers
Which algebraic expressions are polynomials? Check all that apply.
Which algebraic expressions are polynomials? Check all that apply.
- -1/3x^3 - 1/2x^2 + 1/4 (correct)
- y^2 + 5y - sqrt3
- 2 - sqrt4x
- -xsqrt6
- x^3y - 3x^2 + 6x (correct)
- 2x^3 - 1/x
Which polynomial represents the algebra tile configuration shown?
Which polynomial represents the algebra tile configuration shown?
- x^2 + 3x − 4x
- −x^2 − 7
- −x^2 + 3x − 4 (correct)
- x^2 + 3x + 4
Which algebraic expression is a polynomial with a degree of 3?
Which algebraic expression is a polynomial with a degree of 3?
- -xysqrt6
- 2y^3 + 5y^2 - 5y (correct)
- 3y^3 - sqrt4y
- 4x^3 - 2/x
Which algebraic expressions are binomials? Check all that apply.
Which algebraic expressions are binomials? Check all that apply.
The polynomial -2x^2 - x + 2 is a _______ with a degree of _______.
The polynomial -2x^2 - x + 2 is a _______ with a degree of _______.
Which algebraic expressions are polynomials? (Select all that apply)
Which algebraic expressions are polynomials? (Select all that apply)
Which polynomial represents the algebra tile configuration shown?
Which polynomial represents the algebra tile configuration shown?
Which algebraic expression is a polynomial with a degree of 3?
Which algebraic expression is a polynomial with a degree of 3?
Which algebraic expressions are binomials? (Select all that apply)
Which algebraic expressions are binomials? (Select all that apply)
Classify the polynomial and determine its degree. The polynomial -2x^2 - x + 2 is a _______ with a degree of _______.
Classify the polynomial and determine its degree. The polynomial -2x^2 - x + 2 is a _______ with a degree of _______.
For the expression 5x^?y^3 + xy^2 + 8 to be a trinomial with a degree of 5, the missing exponent on the x-term must be _______.
For the expression 5x^?y^3 + xy^2 + 8 to be a trinomial with a degree of 5, the missing exponent on the x-term must be _______.
Which represents the polynomial below written in standard form?
Which represents the polynomial below written in standard form?
Which polynomial correctly combines the like terms and puts the given polynomial in standard form?
Which polynomial correctly combines the like terms and puts the given polynomial in standard form?
What is the first term of the polynomial Raj ended up with?
What is the first term of the polynomial Raj ended up with?
Which terms could be used as the first term of the expression below to create a polynomial with a degree of 5 written in standard form? (Select all that apply)
Which terms could be used as the first term of the expression below to create a polynomial with a degree of 5 written in standard form? (Select all that apply)
Explain which student is correct and why regarding the polynomial expression 3x^3 - 4x^2y + y^3 + 2.
Explain which student is correct and why regarding the polynomial expression 3x^3 - 4x^2y + y^3 + 2.
Flashcards
What is a polynomial?
What is a polynomial?
An algebraic expression made up of terms with variables raised to non-negative integer powers, combined using addition, subtraction, and multiplication.
What is a binomial?
What is a binomial?
A polynomial with two terms.
What is the degree of a polynomial?
What is the degree of a polynomial?
The highest power of the variable in a polynomial.
Example of a polynomial with degree 3
Example of a polynomial with degree 3
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What is a trinomial?
What is a trinomial?
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What is standard form of a polynomial?
What is standard form of a polynomial?
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What are like terms?
What are like terms?
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Polynomial in standard form
Polynomial in standard form
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Study Notes
Polynomials Overview
- Polynomials are algebraic expressions consisting of variables, coefficients, and non-negative integer exponents.
- A polynomial must not include divisions by variables or roots of variables.
Identifying Polynomials
- Examples of valid polynomials include:
- x^3y - 3x^2 + 6x
- -1/3x^3 - 1/2x^2 + 1/4
- Non-examples include:
- 2x^3 - 1/x (division by x)
- y^2 + 5y - sqrt3 (involves a square root)
Polynomial Types and Representation
- A polynomial can be classified as:
- Trinomial: has three terms, e.g., -2x^2 - x + 2.
- Binomial: has two terms, e.g., 6y^2 - y.
- The arrangement in standard form typically has terms ordered by descending degree.
Polynomial Degree
- The degree of a polynomial is determined by the highest exponent in the expression.
- A polynomial with a degree of 3 can be represented as:
- 2y^3 + 5y^2 - 5y.
Simplification and Standard Form
- Combining like terms effectively simplifies a polynomial.
- An example of simplification: for -5x^3y^3 + 8x^4y^2 - xy^5 - 2x^2y^4 + 8x^6 + 3x^2y^4 - 6xy^5, the standard form is:
- 8x^6 + 8x^4y^2 - 5x^3y^3 + x^2y^4 - 7xy^5.
Analysis of Polynomial Expressions
- Different arrangements of a polynomial can still qualify as standard form depending on the variable order.
- Both forms by Marcus and Ariel are acceptable based on their order of variables (x and y).
Creating Polynomials
- To create polynomials with a specific degree (e.g., degree of 5), include appropriate terms such as:
- 8.4x^4y^2 or 5x^4y.
Conclusion on Polynomial Forms
- Understanding the classification, degrees, simplification, and standard forms is crucial for working with polynomials in algebra.
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