Algebra-1

A polynomial is an expression consisting of variables raised to whole-number powers and combined using addition, subtraction, and multiplication.

Option A:  is not a polynomial  because  involves division by x, which makes it a rational expression, not a polynomial.

Option B:  is a polynomial . It contains terms with the variable x raised to non-negative integer powers (3 and 1), and a constant term (4). This fits the definition of a polynomial.

Option C:

Click "Show Answer" to reveal the answer and analysis