The sum of several monomials is called polynomial. Each monomial in a polynomial is called a polynomial term. An algebraic expression in the form of the product of any number of letters and numbers is a monomial. Items without letters in each monomial are called constant items.

The single writing format is 1. Numbers are written before letters, and multiplication should be omitted. [5a], [16xy], etc.

π is a constant, so it can also be used as a coefficient. Not that I don't know.

3. If the coefficient is a fraction, it should become a false fraction.

4. When the coefficient of the monomial is 1 or-1, "1" is usually omitted, such as [(- 1)ab] written as [-ab] and so on.

5. In the monomial, the letter can't be the denominator, but the numerator can.

6. The coefficient of single number "0" is zero, and the degree is also zero.

7. The coefficient of a constant is itself, and the degree is zero.

8. If it is a fractional polynomial, then his coefficient is his fractional constant, and the degree is the highest power.

Definition of Polynomial In mathematics, a polynomial refers to an expression obtained from variables, coefficients and their addition, subtraction and multiplication (non-negative integer power).

More broadly, the sum of 1 or 0 monomials is also a polynomial. According to this definition, polynomials are algebraic expressions. In fact, there is no theorem that is valid only for narrow polynomials but not for monomials. When 0 is a polynomial, the degree is defined as negative infinity (or 0). Monomial and polynomial are collectively called algebraic expressions.