Math Dictionary / Binomial
Binomial
A binomial is a polynomial with exactly two terms.
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What it means
The two terms are joined by addition or subtraction, such as x + 5 or 3a – 2b.
Also called: two-term polynomial
Examples
| x + 7 is a binomial |
| 3m – 4 is a binomial |
| x^2 + 2x + 1 is not a binomial because it has three terms |
Common mistake
A binomial has exactly two terms, not two variables.
Try one
Question: Is 5x – 9 a binomial?
Show answer
Yes. It has two terms: 5x and -9.