Identify whether the expression is a polynomial. If so, how many terms does it have?

The given expression V - 3x + 4 is a polynomial because it consists of several terms combined by addition/subtraction operations.

It has 3 terms:
- V
- -3x (can also be written as -3*x or -3x^1)
- 4 (can also be written as 4x^0 since any number with an exponent of 0 is equal to 1)