What is the cubed root of 8?

2 Answers
May 9, 2018

root(3)8=2

Explanation:

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

The cube root of 8 is 2, because:

2*2*2=4*2=color(red)(8)

You can also use exponents:

2^3=2^2*2^1=4*2=color(red)(8)

May 9, 2018

root(3)8= (8)^(1/3)=(2^3)^(1/3)=2

Explanation:

show that 8=2^3

cubic root of x equals x^(1/3)

cubic root of 8 equals (8)^(1/3)=(2^3)^(1/3)=2

note that

(x^n)^m=x^(n*m)