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Mathematics 10 Online
OpenStudy (anonymous):

Which of the following are polynomials? A. Square root of X plus 2. B. x^2+x+5 C. x+x^-3 D. x^4+x^2+7. Right off the bat, we can cross of C. So, what's left is A, B, and D. Does anyone have any tips so I could remember which ones are polynomials, and which ones aren't?

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