10. What is the product of (2x - 3) and (2x + 3)?
A. 4x² - 9
B. (2x - 3)2
C.4x2 - 12x + 9
D. 2x² - 9
11. Which of the following is equal to (x + 5)3?
A. X3 + 15x + 125
C. x3 + 15x2 + 75x + 125
D. (x + 5)2 + (x + 5)
B. x2 + 15x + 125
12. The product of (2x + 7) and (2x - 7) is
A. 4x2 – 14x + 49
C. 4x2 - 14
D. 4x2 - 49
B. 4x2 – 28x + 49
13. The following expressions are equal to (6x – 2)except
A. (6x – 2)(6x – 2)(6x – 2)
C. 216x3 - 8
B. (6x – 2)2(6x – 2)
D. 216x3 – 216x2 + 72x – 8
14. Find the area of a square frame with a side of (x + 5) cm.
A. (x2 + 20x + 25) cm?
C. (x2 + 25) cm?
B. (x2 + 10x + 25) cm2
D. (x2 + 10) cm2​