Which among the following is a cubic polynomial?

x^{3} - 3 x^{- 1} + 5

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

2 x^{3} + 5 x^{2} + 6 x + 1

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

x^{2} + x + 1

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

x^{4} + 3 x^{3} + 4 x^{2} - 5 x + 4

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

Open in App

Solution

The correct option is B $2 x^{3} + 5 x^{2} + 6 x + 1$
A polynomial of degree $3$ is cubic polynomial.
The general form of cubic polynomial is
$a x^{3} + b x^{2} + c x + d, a, b, c, d \in R, a \neq 0$
So,
$2 x^{3} + 5 x^{2} + 6 x + 1$ is a cubic polynomial.

Suggest Corrections

Similar questions

If -1,1 & 3 are the zeroes of a cubic polynomial, which of the following is the correct expression of the polynomial?

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program