1. Which of the following is NOT a polynomial?

A) 3/(x - 5)

B) 52x3 - 1995

C) 3xy - 4yz + 2xz

D) 5x3 - x/2

A) 3/(x - 5)

Step-by-step explanation:

In mathematics, a polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

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step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.