Explain why every polynomial is also a rational expression?

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Answer 1 · 2017-06-02T23:05:53

A polynomial #f(x)# is equivalent to the rational expression #f(x)/1#

The expression:

#1#

is a polynomial of degree #0#

So for any polynomial #f(x)#, the expression:

#f(x)/1#

is a rational expression, being a division of one polynomial by another.

But #f(x)/1# is just another way of writing our polynomial #f(x)#.