Question: What is the value of x in the polynomial equation x^3 - 4x^2 + 4x = 0?
Options:
Correct Answer: x = 0, 2
Solution:
Factor out x: x(x^2 - 4x + 4) = 0. This gives x = 0 or (x - 2)^2 = 0, so x = 2.