11. Which factors yield to k2 – 16?
1. (k – 4) and (k + 4)
B. (k - 4)
C. (k – 4) and (k – 4)
D. (k + 4) and (k + 4)
12. One of the factors of 16p2 – 25 is 4p – 5. What is the other factor?
A. 4p - 5
C. 4p2 + 5
B. 4p + 5
D. 4p2 - 5
13. Which from the choices are factors of h3 - t3?
A. (h - t) and (h2 + ht + t2) C. (h – t) and (h2 – ht - t2)
B. (h – t) and (h2 + ht - t2)
D. (h – t) and (h2 – ht + t2)
14. What is the factored form of 25j3k – 20k2?
A. 5jk(5j2 - 4k)
C. k(25j3 – 4k)
B. 5k(5j3 – 4k)
D. 5kj(5j2 – 4k)
15. What is the area of a square rice field if the side is (3m+5) meters?
A. (9m2 – 30m + 25) sq. meters C. (9m2 + 30m + 25) sq. meters
B. (9m2 + 30m - 25) sq. meters D. (9m2 + 25) sq. meters​