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A generalised version of the well-known arithmetic operation known as long division, polynomial long division is an algorithm for dividing a polynomial by another polynomial of the same or lower degree in algebra. The long division method of polynomials is one of the most common methods of dividing polynomials. In this method, there is a divisor, a dividend (which is to be divided), a quotient, and a reminder. This is a very interesting method of dividing polynomials. The image given below describes the different terms used in the long division method of polynomials.
Polynomial Division
Contents
What is a Polynomial?
When exponents, constants and variables are combined using mathematical operations like addition, subtraction, multiplication and division, the result is a polynomial. The kind of the polynomial expression may be monomial, binomial or trinomial, depending on how many terms are included in it.
Example: [9x,2x + 3y,3x + 4z – 9z + 5xyz] and so on.
Monomial, Binomial and Trinomial
The number of terms in a polynomial determines which of three different sorts of polynomials it is. There are three different kinds of polynomials:
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Monomial
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Binomial
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Trinomial
Types of Polynomials
Monomial
Monomial is an expression that contains only one member. There must be only one term which is nonzero. Here are some examples of monomials:
[3x,5y].
Binomial
A binomial expression is a polynomial expression containing exactly two terms. A binomial can be thought of as the sum or difference of two or more monomials. Here are some examples of binomials:
[3x + 4y,6a + 5b].
Trinomial
A trinomial is an expression with exactly three terms. Here are some examples of trinomial:
[2{x^2} + 3x + 4]
Long Division Method of Polynomial
Polynomial Division is the process of dividing one polynomial into another. You can perform division between different types of polynomials. Between two monomials, between a polynomial and a monomial, or between two polynomials. A polynomial is an n-algebraic expression with expressive variables, terms and coefficients.
Steps of Long Division Method of Polynomial
This method of Long Division Polynomials is as follows:
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Sort the terms in descending order of degree.
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Write the missing terms using 0 as the coefficient.
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For the first term of the quotient, divide the first term of the dividend by the first term of the divisor.
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Multiply this quotient by the divisor to get the product.
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Subtract this product from the dividend and omit the next section (if any).
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The difference and the shortened period form a new dividend.
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Follow this process until you get the rest. The remainder can be zero or have an index less than the divisor.
Long Division of Polynomials
Solved Examples on Division Polynomials
1. Solve [left( {24{x^2} + 2x + 4} right) div left( {2x + 1} right)] using a long division method.
Ans: The image below will give a better understanding on how to divide Polynomials.
Answer: Remainder: 9
Quotient: 12x – 5
2. How are Polynomials Divided?
Ans: In mathematics, there are two ways to divide polynomials. These are the synthetic approach and lengthy division. The long division method is the most challenging and time-consuming to master, as its name suggests. The synthetic technique, on the other hand, is a “fun” way to divide polynomials.
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