D 1. x² = 16
I 2. x² - 25 = 0
K 3. x² - 100 = 0
A 4. x² - 144 = 0
J 5. 2x² = 50
B 6. 4x² = 225
C 7. 3x² = 147
K 8. x² - 49 = 0
F 9. 2x² = 72
G 10. x² - 64 = 0
