What is the cubed root of 8?

2 Answers
May 9, 2018

38=2

Explanation:

The cube root of x (denoted by 3x) is a number that you multiply by itself three times to get x.

The cube root of 8 is 2, because:

222=42=8

You can also use exponents:

23=2221=42=8

May 9, 2018

38=(8)13=(23)13=2

Explanation:

show that 8=23

cubic root of x equals x13

cubic root of 8 equals (8)13=(23)13=2

note that

(xn)m=xnm