Sure! Here are the matches for each expression:
14. x²-25 = (x+5)(x-5)
15. x²-3x-10 = (x-5)(x+2)
16. x²-4x = x(x-4)
17. x²+x-20 = (x+5)(x-4)
18. r²-16 = (r+4)(r-4)
19. 3x-6 = 3(x-2)
20. x²-9 = (x+3)(x-3)
21. x² - 1 = (x+1)(x-1)
A. x(x - 1) (matches 21)
B. 3(x+1) (matches 19)
C. x + 5 (matches 17)
D. x+ 2 (matches 21)
E 12x (matches 16)
F. x+3 (matches 19)
G. x(x - 5) (matches 14)
H. 2(x+4) (matches 15)
J. x+3 (matches 19)
K. x-5 (matches 14)