Question

b^3=-125 solve

Answer 1

take the cubed root of 125. since it's negative and an odd root, it will retain its sign.

Answer 2

b=-5

Answer 3

b= -5
b= 5/2*(1+i*sqrt(3))
b=5/2*(1-i*sqrt(3))

Answer 4

b^3=-125
b^3=(-5)^3
b=-5