How can we find a cube root that is not irrational
A cube root that is not irrational would be a perfect cube. In other words, if a number is a perfect cube, then its cube root will be a rational number.
To find a cube root that is not irrational, one can look for perfect cubes of numbers. For example, the cube root of 8 is 2, the cube root of 27 is 3, and so on. These are all rational numbers because they are perfect cubes.
In general, to find a cube root that is not irrational, look for perfect cubes of numbers and take the cube root of that number.