What's More Activity 3: Complete me! Solve the following quadratic equations by completing the square. Write your answers after each equation. You may use arother sheet of paper for your solution, .
1. y2 + 4y - 21 = 0
2. 4x2 + 4x = 3
3. x2 + 5x - 6 = 0
4. x2 + 8x = -6
5. x2 - 4x = 5
6. 3x2 + 6x - 12 = 0
7. 5x + 3 = 2x2
8. x2 - 4x = 3
9. 3x2 = 2 - 5x
10. 4x2 = 2 - 7x​