7. What polynomial is obtained if 27xy! + 18x®y + 9x'y is divide by 3xy? A. 9xy + 6x²y3 + 3y B. 9xlys + 6x y C. 9xy + 18x'y + 6x D. 9x y*46xy? + 3x 8. What expression will satisfy the given statement: (a + 3) ( a +60 + 9 A. a - 3 B. 3-a C a + 3 D. -3 + a 9. Find the product of (x-1) and (x + 1). A. *²4 1 B. X-1 C. x² + x + 1 D. XX+1 10. What will be the first term of the product of (2x - 1)? A.4x2 B. 4x C. 1 D. 2x 11. Multiply (4y - 5d) (4y + 5d) A. 16y2 + 25d B. 4y + 5d C. 16y2 - 25d D. 4y -5d 12. Evaluate (x-3) (x2 + 3x + 9) A. x2 - 81 B. X. 27 C.X + 9x + 27 D.X9x + 27 13. Solve (x-6) A. x2 + 12x - 36 B. x2 + 36 C. x2 - 36 D. X? - 12x + 36 14. What is the area of the square whose side is 2x + 5? A. 4x2 20x - 25 B. 4x2 - 20x + 25 C. 4x2 + 20% - 25 D. 4x2 + 20x + 25 15. Evaluate (x + 4)" A. x3 + 12x2 + 48x + 64 B. x3. 12x2.48x - 64 C. Xy - 12x2 + 48x - 64 D.X + 12x2 - 48x + 64​