Exemplar - Verify polynomial or not III — task. Maths CBSE Mentoring, Class 9 Mentoring product.

Which of the following expressions are polynomials? Justify your answer:

1. \(5\frac{1}{x^{-2}}+5x+7\) is

\frac{(x - 2) (x - 4)}{x}

3. \(\frac{1}{x+1}\) is

Answer variants:

a polynomial

not a polynomial

Did you find an error?

5. Exemplar - Verify polynomial or not III