21. Which of the following is NOT a polynomial?


A. 11−2 + 5

B. 130

C. √6 4 − 4

D.
712
+ 2

22. Which of the following is a binomial?


A. 92 + 42

B. 27 − 4

C. 4 + 6 − 1

D. 11 − 6

23. Which is the degree of the polynomial 104 − 243 + 82 + − 4?


A. 24

B. 10

C. 4

D. 0

24. Which is the sum of (4 − 4) ( + 4)?


A. 42 + 12 − 16

B. 5

C. 42

D. 3 − 8

25. Which is the product of ( + 1) ( + 2)?


A. 2 + 3 + 2

B. 2 + 2

C. 2 + 3 + 3

D. 22 + 2 + 3​