Which of the following expressions are polynomials?
(i) $x^{2} + 4$
(ii) $4 - x^{- 1}$
(iii) $2 x^{2} - \frac{2}{x}$

i, ii, iii

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

ii, iii

No worries! We‘ve got your back. Try BYJU‘S free classes today!

iii

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
i

Polynomials cannot have variables with exponents as negative integers. So, (ii) and (iii) are not polynomials as the variable 'x' has negative exponents.

Suggest Corrections

Similar questions

Find the value of the following expressions, when x = − 1:

(i) 2x − 7 (ii) − x + 2 (iii) x² + 2x + 1

(iv) 2x² − x − 2

\sqrt{a x} + x^{2} - x^{3}

\sqrt{5} y

Which of the following expressions are polynomials?
(i) $x^{2} + 4$
(ii) $4 - x^{- 1}$
(iii) $2 x^{2} - \frac{2}{x}$

Join BYJU'S Learning Program