Q.
A. x3 + 5x2 + 5x + 1 = 0
B. x3 - 5x2 + 5x - 1 = 0
C. x3 - 5x2 - 5x - 1 = 0
D. x3 - 5x2 - 5x + 1 = 0
E. None of the above
Correct choice: B
Explanation: