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1 vote
Which of the following is a polynomial?

A. X^-y+ 2
B. X^4+ x^-4+ 16
C. (x^6-2)/(x^-4+3)
D. X^2-1

1 Answer

5 votes
D.
x^2 - 1
can be written as x^2 +1
User Zhiwei Li
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