25 points
Please explain your answer, thank you!

Which expression is not a polynomial?
A. -5x+6y
B. -3/x
C. 2p^3q^2-pq^3
D. 7-z

Respuesta :

Answer:  The correct answer is:  [B]:

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                " [tex]\frac{-3}{ x}[/tex] " .

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Step-by-step explanation:

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Note:  A number; "divided by a variable" ; is Not a "polynomial" .

Answer choice:  [B]:  " [tex]\frac{-3}{ x}[/tex] " ;  

         is a "number;  divided by a "variable" ;  and as such, is Not a "polynomial".

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