# Precalculus Examples

Step 1

A polynomial is a combination of terms separated using or signs. Polynomials cannot contain any of the following:

1. Variables raised to a negative or fractional exponent. (,,).

2. Variables in the denominator. (,,).

3. Variables under a radical. (,,).

4. Special features. (trig functions, absolute values, logarithms, ).

Step 2

Determine if the expression breaks any of the rules.

Does not break any of the rules

Step 3

Determine if the expression is a polynomial.

Polynomial