Multiple choice general knowledge A trinomial is a polynomial with exactly how many terms? 3 4 5 6 Reveal answer Fill a bubble to check yourself A Correct answer Explanation A trinomial is defined as a polynomial with exactly three terms, such as x² + 2x + 1. Options with 4, 5, or 6 terms would be called quadrinomial, quintinomial, or hexinomial respectively, though these terms are rarely used.