Is the expression 5q−4+6q a polynomial?

1 Answer
Daniel L.
May 18, 2017

No. It is not a polynomial. See explanation.

Explanation:

A polynomial is a sum of expressions in a form of an⋅xn with natural exponents n.

in the given example one of the exponents is negative, therfore not natural, so it is not a polynomial.

Another difference is the domain of the expression. A polynomial is defined for all real values of the variable while the expression given is not defined for q=0

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