What is the value of a if the degree of the polynomial x2+xa−2+xy+xy2+3 is 4?
A
4
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B
5
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C
6
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D
3
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Solution
The correct option is C 6 The degree of a polynomial is the highest degree of its terms. The degree of a term is the sum of the exponents of the variables that appear in it. Since the degree of the polynomial is 4, a - 2 = 4, a = 4 + 2 = 6