Q&A for How to Find the Degree of a Polynomial

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  • Question
    What is the degree of a polynomial?
    Community Answer
    In the case of a polynomial with only one variable (such as 2x³ + 5x² - 4x +3, where x is the only variable),the degree is the same as the highest exponent appearing in the polynomial (in this case 3). In the case of a polynomial with more than one variable, the degree is found by looking at each monomial within the polynomial, adding together all the exponents within a monomial, and choosing the largest sum of exponents. That sum is the degree of the polynomial. For example, in the expression 2x²y³ + 4xy² - 3xy, the first monomial has an exponent total of 5 (2+3), which is the largest exponent total in the polynomial, so that's the degree of the polynomial.
  • Question
    What is degree of 1/x^4 + x^2?
    Donagan
    Top Answerer
    1 / (x^4) is equivalent to x^(-4). So the highest (most positive) exponent in the polynomial is 2, meaning that 2 is the degree of the polynomial.
  • Question
    What about a polynomial with multiple variables that has one or more negative exponents in it?
    Donagan
    Top Answerer
    Combine the exponents found within a given monomial as you would if all the exponents were positive, but you would subtract the negative exponents.
  • Question
    What is the multi-degree of a polynomial?
    Community Answer
    The multi-degree of a polynomial is the sum of the degrees of all the variables of any one term.
  • Question
    How do I find the degree of the polynomials and the leading coefficients?
    Donagan
    Top Answerer
    The degree is the same as the highest exponent appearing in the polynomial. Coefficients have a degree of 1.
  • Question
    What is the degree of expression x/y?
    Donagan
    Top Answerer
    When no exponent is shown, you can assume the highest exponent in the expression is 1. Therefore, the degree of this monomial is 1.
  • Question
    How do I find the degree of a polynomial that is (x^2 -2)(x+5)=0?
    Donagan
    Top Answerer
    The degree is the same as the highest exponent appearing in the final product, so you just multiply the two factors and you'll wind up with x³ as one of the terms in the product. That's the highest exponent in the product, so 3 is the degree of the polynomial.
  • Question
    What's the degree of 3x-8?
    Community Answer
    One. The term 3x is understood to have an exponent of 1.
  • Question
    What is the degree of (5y^3/x^2)+4x?
    Donagan
    Top Answerer
    The degree is 3.
  • Question
    How do I find proper and improper fractions?
    Donagan
    Top Answerer
    A proper fraction is one whose numerator is less than its denominator. An improper fraction is one whose numerator is equal to or greater than its denominator.
  • Question
    What is the degree of -10?
    Vasundhra Lathar
    Community Answer
    1 is the degree of -10 because there is only one term and its power is 1, so the degree will be 1.
  • Question
    Is x + 1x - 1 a polynomial?
    Donagan
    Top Answerer
    Yes. The expression can be simplified to 2x -1, which is a binomial. A binomial is a polynomial.
  • Question
    What is the degree of 8?
    Donagan
    Top Answerer
    Technically it has no degree, because there's no variable. 8 is a monomial which can be expressed as 8^1 (8 to the power of 1), so you could think of the degree as 1.
  • Question
    What is the degree of this equation? 3x + 4y + xy = 5
    Donagan
    Top Answerer
    Each term in the polynomial has an exponent of 1, so 1 is the degree of the polynomial. (Technically each constant and each variable in the whole equation carries an exponent of 1.)
  • Question
    Why do I have to add the exponents sometimes and other times only use the largest degree?
    Donagan
    Top Answerer
    You use the largest exponent when you want to discover the degree of a polynomial. You add exponents when you are multiplying two (or more) numbers of the same base -- for example, (x^3)(x^4) = x^(3+4) = x^7.
  • Question
    Is -2014x a polynomial?
    Donagan
    Top Answerer
    No, it's a monomial. A polynomial consists of more than one monomial separated from each other by a plus or minus sign.
  • Question
    What is the degree of 8/x?
    Donagan
    Top Answerer
    8/x can be written as (8^1)[x^(-1)]. The highest (most positive) exponent is 1, so 1 is the degree of the expression.
  • Question
    I'm working with two terms with the same sum of exponents. They have the same degree. Which term would have the highest degree?
    Community Answer
    Neither term has a higher degree than the other, considering that both terms have the same degree. Your highest degree is whatever number you have found.
  • Question
    What do I do if the 2 highest degrees of a polynomial are the same?
    Donagan
    Top Answerer
    In the polynomial x² + y², 2 is the degree of the polynomial. In the polynomial x²y³ - x³y², 5 is the degree.
  • Question
    What is polynomial degree 100?
    Donagan
    Top Answerer
    That's a polynomial whose highest exponent is 100.
  • Question
    How do I find the degree of the product of two polynomials of degrees m and n?
    Donagan
    Top Answerer
    The highest exponent in the product would be mn, so the product's degree is mn.
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