Final answer:
When multiplying two polynomials, distribute each term of the first polynomial to every term of the second polynomial, then combine like terms.
Step-by-step explanation:
When multiplying two polynomials, you distribute each term of the first polynomial to every term of the second polynomial, and then combine like terms. In this case, the product of the polynomial 3x^3+8x^2+x+3 and another polynomial will have four terms. Each term in the first polynomial will be multiplied by each term in the second polynomial, resulting in a total of 16 terms in the product. You can simplify the product by combining like terms.