SOLUTION: Which of the following equations is not a polynomial? a. x^2-x+2/x b. y=x c. y=3x-5(x+2) d. y=3x^4-2x

Question 312642: Which of the following equations is not a polynomial?
a. x^2-x+2/x
b. y=x
c. y=3x-5(x+2)
d. y=3x^4-2x
Answer by Edwin McCravy(20056) (Show Source): You can put this solution on YOUR website!


A polynomial must be the sum of terms consisting only of numerical coefficients of variables 
with whole number powers, and no variables in denominators.

Choice a) has a variable in a denominator.  So it is the only one which is not a polynomial.

Edwin

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