a ) polynomial with 4 terms(quadrinomial),
the polynomial is degree 3
Step-by-step explanation
Step 1
Polynomials are classified according to their number of terms:
A polynomial with two terms is a binomial, and a polynomial with three terms is a trinomial,Also.
the terms in a polynomial are separated by the signs + or -,then
.
![\begin{gathered} 8s^3-8st+9s-5 \\ \text{then , it has 4 terms} \\ 8s^3 \\ -8st \\ +9s \\ \text{and -5} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/ncgchocknoakn0cec301kpiy6pb6xucnke.png)
A polynomial of four terms is sometimes called a quadrinomial.
Step 2
The degree of the polynomial is found by looking at the term with the highest exponent ,on its variable , our variable is s ,and the highest exponent is 3,
Hence
the polynomial is degree 3
I hope this helps you