What Is A Cube Root In Math

What is cube root.

What is a cube root in math.

B 3 a. 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. Cube roots is a specialized form of our common radicals calculator. B 3 a.

And just so you know you don t have to stop there. 3 cubed is 27 so the cube root of 27 is 3. The cube root of a number is a special value that when used in a multiplication three times gives that number. So based on the math that we know so far you actually can take the cube root of a negative number.

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. 3 3 3 27 so the cube root of 27 is 3. A cube root of a number a is a number x such that x 3 a in other words a number x whose cube is a. Use this calculator to find the cube root of positive or negative numbers.

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. The cube root of 64 is 4. A cube root goes the other direction. 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.

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. Review cube roots and try some practice problems.

Definition of cube root.