What Is A Cube Root In Math

A cube root goes the other direction.

What is a cube root in math.

What is cube root. Cube roots is a specialized form of our common radicals calculator. 3 cubed is 27 so the cube root of 27 is 3. Use this calculator to find the cube root of positive or negative numbers.

Definition of cube root. The cube root of a number is a special value that when used in a multiplication three times gives that number. 3 3 3 27 so the cube root of 27 is 3. You could take a fourth root and in this case you d have a four here a fifth root a sixth root a seventh root of numbers and we ll talk about that later in your mathematical career.

Review cube roots and try some practice problems. For example 27 is the cube root of 19683 because 27 3 27 27 27 19683 27 is cube root of 19683 because 27 3 27 27 27 19683. If you re seeing this message it means we re having trouble loading external resources on our website. The cube root of a number a a a denoted as a 3 sqrt 3 a 3 a is the number b b b such that.

Cube root definition a quantity of which a given quantity is the cube. The cube root of 64 is 4. B 3 a. In mathematics a cube root of a number x is a number y such that y 3 x all nonzero real numbers have exactly one real cube root and a pair of complex conjugate cube roots and all nonzero complex numbers have three distinct complex cube roots.

And just so you know you don t have to stop there. So based on the math that we know so far you actually can take the cube root of a negative number. B 3 a. For example the real cube root of 8 denoted 3 8 is 2 because 2 3 8 while the other cube roots of 8 are 1 3 i and 1 3 i.

Given a number x the cube root of x is a number a such that a 3 x if x positive a will be positive if x is negative a will be negative.