Which of the following is NOT a polynomial?
A$2x - 3$
B$x^2 + 5$
C$x^3 - 1$
D$\dfrac{1}{x-1}$
Answer & Solution
Correct answer: D. $\dfrac{1}{x-1}$
1/(x−1) has the variable in the denominator, so it is not a polynomial.
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