Question: Please solve with work included 1. Simplify: (-6a2 -3a+9)-(3a' -4a2 -20+6) 2. Simplify: (-2a'6) (2 2 ab') ? 3. Simplify: (2x'y*) (-3xy)' 4. Simplify: (2a-5b)(a-4b)
Please solve with work included

1. Simplify: (-6a2 -3a+9)-(3a' -4a2 -20+6) 2. Simplify: (-2a'6)" (2 2 ab') ? 3. Simplify: (2x'y*) (-3xy)' 4. Simplify: (2a-5b)(a-4b) 5. Simplify: (7x -2y) (7x+2y) 6. Factor: 4x2 y2 - 6xy +12x2 7. Factor: ax -3a +bx -3b 8. Factor: 5x2 +18x -8 9. Solve: x* -5x2 +4 10. Simplify: 6x2 2 +1 1xy + 4 9x2 y2 +9xy -4 11. Simplify: 2 4 3 xy 6 xy 2 12. Simplify: - DIN DIN + 13. Solve the proportion: 2y 14. Solve: 6 2y +5 y - 2 2x - 3 - =
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