Directions: Square the following monomials.
1. (a2)2
2. (b3)2
3. (c4)2
4. (-d5)2
5. (rs)2
6. (m2n2)2
7. (cd2)2
8. (-x3y2)2
9. (2b)2
10. (3x2)2
11. (-4m3)2
12. (-5y4)2
13. (9ab)2
14. (10x2y2)2
15. (-12cd3)2
16. (-15r2s4)2
17. (3/4a)2
18. (5/3c)2
19. (-7/8m)2
20. (-4/5x2)2