## anonymous 3 years ago Again look at the picture

1. anonymous

2. anonymous

@skullpatrol

3. anonymous

@skullpatrol

4. anonymous

@zordoloom

5. abb0t

They are all polynomials. sqrt of x is the same thing as x^1/2

6. anonymous

thank you

7. mathstudent55

A, D, E, F are. Others are not. B has x in radical, and C has variables in the denominator.

8. abb0t

Even if the variables are in the radicals, you can still express them as: $x^{-n}$ similarly, $\sqrt{x} = x ^{\frac{ 1 }{ 2 }}$

9. abb0t

in the denom*

10. mathstudent55

That's not a polynomial, though. In a ploynomial, variables can only have non-negative exponents.

11. abb0t

Oh sh*t. You're right. My bad.

12. mathstudent55

np