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Which one of the following is NOT a polynomial?

Class 9Degree and Types of PolynomialsPolynomials

A $x^{2} + 3 x + 1$
B $5 x - 2$
C $\frac{3}{x} + 4$
D7

Step-by-Step Solution

\frac{3}{x} = 3 x^{- 1}

has a negative exponent of the variable, so it is not a polynomial. The others have whole-number exponents.

Answer: C)

\frac{3}{x} + 4

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