## Math Basics## Basic Mathematical Operations |

## What are a cube and cube root? |

Much like a square, a cube is when you multiply a real or complex number by twice itself (making a total of three numbers). Mathematicians express the cube of a number using the superscript 3; or, for example, 2^{3}, or 2 × 2 × 2. Unlike a square of a number, the cube of a number will not always be positive, such as -3 × -3 × -3, which equals -9.

A cube root is a number that when multiplied by itself two more times has the product of *s,* in which *t*^{3} = *s*. For example, the cube root of 125 (*s*) is 5 (*t*), or written as ; the cube root of -125 is -5.