Name ___________________________________________ © 2008, A. Azzolino   www.mathnstuff.com/papers/condots/prose.htm Oscar Reutersvard's Penrose Square -- Solve the quadratic. Connect the answers in order, perhaps w/a straightedge.

Start a new line. 1. x² - 8x + 16 = 0 2. (x + 1)(x + 2) = 0 3. x² - 7x +12 = 0 Start a new line. 4. x² + 3x = - 2 5. (x - 2)(x - 4) = 0 Start a new line. 6. x² + 1x - 6 = 0 7. x² - 3x - 10 = 0 8. x² - 6x + 9 = 0 9. x² = 6x - 8 10. x² + x = 6 11. (x - 6)² = 0 12. x² + 5x + 9 = - x 13. x² + 1 = - 2x 14. x² + 8x + 16 = 0 15. x² + 14x + 49 = 0 16. x² - 6x + 5 = 0 17. x² + 7x + 10 = 0 18. x² - x - 6 = 0

Start a new line. 19. x² - 3x - 4 = 0 20. x² + x - 20 = 0 21. x² - 18x + 81 = 0 22. x² - 10x + 24 = 0 23. x² + 12x + 36 = 0 24. (x + 5)² = 0 25. x² - 8x + 15 = 0 26. x² + 16x + 64 = 0 27. x(x + 1) = 0 28. x² - 5x + 6 = 0 29. x² - 4x + 4 = 0 30. x² - 6x + 9 = 0 Start a new line. 31. x² + 10x + 25 = 0 32. - x² + 5x - 6 = 0 33. x² - 5x = 0 34. x² = 0 35. x² - 8x + 16 = 0 36. x(x-1)(x-2) = 0 37. x² - 3x - 10 = 0

Start a new line. 38. x³ -3x² +2x = 0 39. 12 + x² = 7x 40. x² - 2x + 1 = 0 41. (x - 8)² = 0 42. x² - 10x + 5 = - 20 43. x² + 4x + 4 = 0 44. x² - 7x + 6 = 0 45. x² - 5x - 6 = 0 46. x² + 7x + 12 = 0 47. x² + 7x + 6 = 0