Definition of

# Root

Where a function equals zero.

In this example, −2 and 2 are the roots of the function x

But sometimes "root" is used as a quick way of saying "square root", for example "root 2" means √2

In this example, −2 and 2 are the roots of the function x

^{2}− 4But sometimes "root" is used as a quick way of saying "square root", for example "root 2" means √2

See: Square Root