Question

(Please help) Which answer describes the polynomial?


`3x^3+4x^2-7`

A) quatric trinomial
B) cubix trinomial
C) quadratic trinomial
D) cubic binomial

Answer 1

`\bf 3x^3+4x^2-7\quad \begin{cases} 3x^3\impliedby &3rd~degree\\ 4x^2\impliedby &2nd~degree\\ 7\impliedby &0~degree \end{cases}`

notice, there are three terms, therefore is a trinomial.

the term that has the highest degree, has a degree of 3, therefore the degree of the polynomial as a whole is 3, or a cubic degree.

so, is a cubic trinomial.