Answer: (a)
Step-by-step explanation:
Given
Polynomial is [tex]-5+x^2+x^3[/tex]
In standard form, Polynomial is written in the form of
[tex]ax^n+bx^{n-1}+cx^{n-2}+dx^{n-3}+\ldots[/tex]
That is leading term must have highest degree
Arranging according to the standard form
[tex]\Rightarrow x^3+x^2-5[/tex]
The above expression is cubic trinomial because degree of x is 3.
Hence, option (a) is correct.
