The degree f polynomial p(x) = x3 + 1 + 2x = 6x + 1/x is

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The degree f polynomial p(x) = x³ + 1 + 2x = 6x + 1/x is ?

1. 2
2. 4
3. 3
4. 5

Correct Option: B

x³ + 1 + 2x =6x + 1/x
x³ + 1 + 2x = (6x² + 1)/x
(x³ + 1 + 2x)x = 6x² + 1
x⁴ - 4x² - 6x² -1 =0
x⁴ - 4x² + x - 1 =0
Degree of polynomial is highest exponent degree term i.e.,4.