12. What are the factors of xy + 2y + 3x + 6?
A. (y + 2)(x+3)
C. (y + 3)(x + 2)
B. (y - 3)(x + 2)
D. (y-2)(x + 3)
13. What are the factors of 4x3 + 2x2 - 2x - 1?
A. (2x2 + 1)(2x + 1)
C. (2x2 + 1)(2x - 1)
B. (2x2 - 2)(2x + 1)
D. (2x2 - 1)(2x + 1)
14. What are the complete of 2x3 - 3x2 - 2x + 3?
A. (x - 1)(x + 1)(2x - 3)
C. (x2 - 1) (2x - 3)
B. (x2 + 1)(2x - 3)
D. (2x - 3)(2x + 3)(x - 1)
15. What are the factors of 9x3 + 36x2 - 4x - 16?
A. (x-2)(x + 2)(3x + 4)
C. (3x-2)(3x + 2)(x + 4)
B. (9x2 + 4)(x - 4)
D. (9x2 - 4)(x + 4) 11 49​