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Answered By: Sara Stambaugh, Digital Services Librarian Last Updated: May 27, 2016 Views: 40
A polynomial is a mathematical expression involving a sum of powers of variables with coefficients. I'll give you several examples and then some examples that are NOT polynomials. The ^ indicates the exponent, in other words x^2 reads as x squared or x to the power 2.
Polynomials:
3x^2+5x-1
4x^5+8x^3+12x^2+8x
5x^3-1
It doesn't matter how many terms there are (poly means many, but there can be only a single term too)
More Polynomials:
2x^3
10x
x
7
Things with a variable in the denominator or a variable in the exponent are NOT polynomials:
1/x
(2+x)/(x^2-4)
3^x
I hope this helps!
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