x^(-1/3) = -(1/9), then x=
A) -729
B) -27
C) 3
D) 81
E) 243
A) -729
B) -27
C) 3
D) 81
E) 243
-
x^(-1/3) = -(1/9)
x = -(1/9)^-3
x = -[1 / (1/9)^3]
x = -[1 / (1 / 729)]
x = -729
x = -(1/9)^-3
x = -[1 / (1/9)^3]
x = -[1 / (1 / 729)]
x = -729
-
x^(-1/3)= -(1/9)
Raise both sides to -3 to cancel (-1/3) on x.
x = -729
Raise both sides to -3 to cancel (-1/3) on x.
x = -729