Which expression is a polynomial? a. 9x^7 y^-3z b. 4x^3 - 2x^2 + 5x - 6+ 1/x c. - 13 d. 13x ^-2

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asked Aug 18, 2021 36.3k views

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Zahan Safallwa · Answer 1 · 2021-08-22T18:35:46+0000

Answer: B.

Explanation:

Polynomials cannot have negative exponenets because x^-3 can be written as 1/x^3 and terms containing fractional exponents are not considered polynomials

Which expression is a polynomial? a. 9x^7 y^-3z b. 4x^3 - 2x^2 + 5x - 6+ 1/x c. - 13 d. 13x ^-2

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