Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

binomial

A polynomial with exactly two terms, like $x+7$ .

A binomial is a polynomial with exactly two terms, such as $x + 7$ or $3x^2 - 7$ .

Examples

$3x^2 - 7$ is a binomial.