Degree of a polynomial

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In mathematics, the degree of a polynomial is the highest of the degrees of the polynomial's monomials (individual terms) with non-zero coefficients. The degree of a term is the sum of the exponents of the variables that appear in it, and thus is a non-negative integer. For a univariate polynomial, the degree of the polynomial is simply the highest exponent occurring in the polynomial. The term order has been used as a synonym of degree but, nowadays, may refer to several other concepts (see Order of a polynomial (disambiguation)). For example, the polynomial 7 x 2 y 3 + 4 x − 9 , {\displaystyle 7x^{2}y^{3}+4x-9,} which can also be written as 7 x 2 y...

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