(x29 - x25 + x13 - 1) is divisible by:

B. (X - 1) BUT NOT BY (X + 1)

If 3- 3x-1 = 18, then the value of xx is :

C. 27

If $x + y = 7$ and xy = 12,
the value of $(x^2 + y^2)$ is :

A. 25

If (x - 1/x) = 1/2 , then (4x2 + 4/x2) is equal to :

C. 9

One of the factors of 3x3 + x2 - 12x - 4 is :

D. 3X + 1