A monomial is simply a special case of a polynomial - one with a single term.
Factor
Yes, it can be considered a polynomial with one term.
a monomial
No. A monomial (watch the spelling, please - only one "no") is a special case of a polynomial. A polynomial may have any number of terms; a monomial has exactly one term.
To determine whether a polynomial is a monomial, binomial, or trinomial, you need to count the number of terms it contains. A monomial has one term, a binomial has two terms, and a trinomial has three terms. If you provide the specific polynomial in question, I can help classify it accordingly.
a single polynomial it only has one variable
2x is just 2x and it is not a polynomial. This is a monomial because it just has one term. a polynomial is four or more terms.
The Degree (for a polynomial with one variable) is the largest exponent of that variable.
No. A monomial is a polynomial with just one term, so that the power must be only a positive integer.
Yes any constant or variable is a polynomial. To be most precise, 1 is a monomial meaning it has one term.
7x2 - 5x + 4 is not a monomial because it has more than one term. It is a quadratic polynomial.