Since no terms are added, it is a monomial (one term). Adding the powers of the variables (three variables, each to the first power), you see that it is of degree 3.
(x-2)(x+2)
That one, there!
A 7th degree polynomial.
15j2(j + 2)
You can evaluate a polynomial, you can factorise a polynomial, you can solve a polynomial equation. But a polynomial is not a specific question so it cannot be answered.
13 is not a polynomial.
quintic
linear monomial
2-3+9
classify
Quartic Binomial
13x(x+3x)
(x-2)(x+2)
Yes, the product of two polynomials will always be a polynomial. This is because when you multiply two polynomials, you are essentially combining like terms and following the rules of polynomial multiplication, which results in a new polynomial with coefficients that are the products of the corresponding terms in the original polynomials. Therefore, the product of two polynomials will always be a polynomial.
A polynomial of order 3 (a cubic) or higher can have more than three terms. However, the the following polynomial, even though of order 7, has only 2 terms: x7 - 23.
That one, there!
a trapizoid