Question

Which description is correct for the polynomial 5x^3?

quadratic trinomial

cubic binomial

quadratic binomial

cubic monomial

Answer 1

D. cubic monomial

Explanation:

We are given the polynomial,
`5x^3`

Since, we know,

Quadratic polynomial - is a polynomial with degree 2

Cubic polynomial - is a polynomial with degree 3

Also, we have,

Monomial - is a polynomial consisting of only one term

Binomial - is a polynomial consisting of two terms

Trinomial - is a polynomial consisting of three terms

As, we see that,

The polynomial
`5x^3` has degree 3 and consists of only one term.

So, the correct description for the given polynomial is 'cubic monomial'.

Hence, option D is correct.

Answer 2

Quadratic trinomial is ( for example ) : x² + 5 x - 6
Cubic binomial is: x³ - 8
Quadratic binomial is: x² - 16
Answer:
The polynomial 5 x³ is D ) Cubic monomial.