Solve equations with squares

Take the root of both sides to undo the power.

1. Solve n² = 225. Write the positive solution.
2. Solve y² = 16. Write the positive solution.
3. Solve y² = 49. Write the positive solution.
4. Solve n² = 100. Write the positive solution.
5. Solve n² = 361. Write the positive solution.
6. Solve x² = 361. Write the positive solution.
7. Solve a² = 121. Write the positive solution.
8. Solve a² = 400. Write the positive solution.
9. Solve x² = 49. Write the positive solution.
10. Solve x² = 9. Write the positive solution.
11. Solve n² = 64. Write the positive solution.
12. Solve n² = 576. Write the positive solution.
13. Solve n² = 625. Write the positive solution.
14. Solve a² = 196. Write the positive solution.
15. Solve n² = 81. Write the positive solution.
16. Solve a² = 361. Write the positive solution.
17. Solve x² = 25. Write the positive solution.
18. Solve x² = 400. Write the positive solution.
19. Solve x² = 225. Write the positive solution.
20. Solve x² = 484. Write the positive solution.