Answer:
x = 2.
Step-by-step explanation:
I am taking this to mean
2^3 * x^3 = (2 + x)^3
8x^3 = (2 + x)(4 + 4x + x^2)
8x^3 = 8 + 8x + 2x^2 + 4x + 4x^2 + x^3
7x^3 - 6x^2 - 12x - 8 = 0
7(2)^3 - 6(2)^2 - 12(2) - 8
= 56 - 24 - 24 - 8 = 0
x = 2.
This is the only real root.
