B. Factor each polynomial completely solution. 1. 13x”y? – 26x?y? 2. 22xy +28xy +34xy 3. x² - 12x +36 4. 16x2 +56x + 49 5. 81x2 – 36x +4 6. 25x” y2 +20xy +4 7. x² – 36 8. 121x? - 16y? 9. 64x2 – 25 10. 100x² – 49y4 ​