Cube root of a negative number

Cube Root Of A Negative Number
Introduction

Cube roots help us find a number that is multiplied by itself three times. For example, if 3 x 3 x 3 = 27, then the cube root of 27 is 3. Negative numbers also have cuber...

Alex is working on a number puzzle where he needs to find the cube root of –216.

Instead of working with –216 directly, Alex rewrites it as –1 × 216.

Now Alex finds the cube root of each factor separately. The cube root of negative one is negative one, because multiplying -1 three times by itself gives -1.

Then, Alex focuses on...