Question

Decide whether the given expression is a polynomial and tell why or why not.

5. 3x2 – 5x + 2

Answer 1

3x² – 5x + 2 is a polynomial because:

Exponents are whole numbers, and the expression has at least 1 term.

Exponents other than whole numbers can take the form of variables in denominators, and roots which we don't want.