Answer:
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Step-by-step explanation:
To identify if it's a polynomial, look at the x and its exponent.
x CANNOT be:
1. In the denominator: [tex]\frac{1}{x}[/tex] NOT polynomial
2. In the exponent: [tex]2^x[/tex] NOT polynomial
3. In a root: [tex]\sqrt{x}[/tex] NOT polynomial
The exponent on the x must be a positive integer, therefore,
exponent:
1.) Cannot be a fraction: [tex]x^{1/2}[/tex] NOT polynomial
2.) Cannot be negative: [tex]x^{-2}[/tex] NOT polynomial
