Roots

In order to find the cubed root of a number:

First, determine what your perfect cubes are.

Second, determine if your perfect cubed match the number under the radical sign.

Third, when the perfect cube is found, determine the base factor and you have your answer.

Remember, a cubed root can be negative. To find the cubed root of -27, you need to find your perfect cube. 27 is 3 x 3 x 3. When you multiply - 3 x -3 x -3, you will get -27. The answer for this problem is -3.

For this problem, we have s³ = 125/8. In order to get rid of the exponent of 3, you need to take the cubed root of both sides. Once you do that you will have x= the cubed root of 125/8. When we have this , we will take the cubed root of both numbers. The cubed root of 125 is 5 and cubed root of 8 is 2. The answer will be 5/2 or 2 1/2.