Question

What is the value of x in the equation x^3=0.64

A.0.04
B.0.4
C.4
D. .08

Answer 1

D

since you are finding for X, and not x^3. Take cubic root of both sides to eliminate the index or power of 3. The cubic root of 0.64 is 0.861 approximately 0.9

Answer 2

x1=-4/5, x2= 4/5 which is equal to 0.8