the directions are: determine whether each expression is a polynomial.(adsbygoogle = window.adsbygoogle || []).push({});

i got the easyones like: 12x^{3}-2x^{2}+0.5is a polynomial

but i cant figure these out:

(x^{3}/11)+(x^{2}/8)

I dont know if the variables can be fractions but i think this could be this:

1/11x^{3}+1/8 x^{2}so i think it is a polynomial.:surprised

4x-2^{2x}+3^{5x}

im not sure if the variable can be the exponent

please explain how it is or is not a polynomial. thank you

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# Homework Help: I need help with polynomials

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