Basic knowledge of polynomial functions
A polynomial is a mathematical expression constructed with constants and variables using the four operations:
In other words, we have been calculating with various polynomials all along. When two polynomials are divided it is called a rational expression.
In such cases you must be careful that the denominator does not equal zero. Division by zero is not defined and thus x may not have a value that allows the denominator to become zero. Otherwise, any other value may be substituted for x.
x must not have the value of 6 since 6-6=0.
Of what degree is the given equation