Solve the following quadratic equations by extracting square roots. Answer the questions that follow.
1. x² = 16
6. 4x² - 225=0
2. t = 81 7. 3h²-147 = 0
3. - 100 = 0
8. (x-4)² = 169
4. x²-144= 0
9. (k+7)² = 289
5. 2s² = 50
10. (2s 1)² = 225​