Answer:
Option: D is the correct answer.
D. it is not possible to determine
Step-by-step explanation:
We know that a binomial is a polynomial with two terms and the polynomial may be of any degree and may contain at most 4 terms i.e. it may be a binomial, trinomial or a polynomial with four terms.
a)
[tex](x-2)(x+4)=x^2+2x-8[/tex]
We get a trinomial
b)
[tex](x^2-4)(x^3+1)=x^5+x^2-4x^3-4[/tex]
Hence, we get a polynomial with four terms.
c)
[tex](x-1)(x+1)=x^2-1[/tex]
Now we got a binomial.
Hence, the best possible answer is:
D. it is not possible to determine
