If (x + 1)2 = x, the value of 11x3 + 8x2 + 8x – 2 is
(A) 1
(B) 2
(C) 3
(D) 4
Correct option: (A) 1
Explanation:
(x + 1)2 = x
x2 + x + 1 = 0
11x3 + 8x2 + 8x – 2
= (x2 + x + 1) (11x – 3) + 1
= (0) (11x – 3) + 1 = 1.