Verify polynomial or not V — task. Maths CBSE Live product, Class 9 (2026-27).

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

\frac{1}{7} x^{3} - \frac{2}{\sqrt{5}} x^{2} + 4 x - 7

2. \(\frac{1}{2x}\) is

Did you find an error?

2. Verify polynomial or not V