pls help me?

Question

pls help me to check my answers by Reducing each rational expression to lowest terms (x^2=means x raised to2)

1. a^2b-ab^2 / a^2-ab

2. 5-80x^2 / 10

3. x^2-9 / x^2-x-6

4. y^2+3y+2 / y^2-1

5. x^2+2x-15 / x^2-x-6

6. x^2+5x+4 / x^2-3x-4

7. 2t^2+3tu-2u^2 / 3t^2+7tu+2u^2

8. 3x^2-8xy+4y^2 / 2x^2-xy-6y^2

9. y^2-x^2 / x^2-y^2+x+y

10. t^2-4s^2 / 4s^2-t^2+2s-t

11. m^6-n^6 / m^4-n^4

12. p^9-q^9 / p^6-q^6

13. 3ax+4by-2ay-6bx / 2ax-2by+ay-4bx

14. bc+3bd-2ac-6ad / 2bc+ac+3ad+6bd

15. 8x^3+1 / 8x^3+12x^2+6x+1

16. 27y^3-27y^2+9y-1 / 27y^3-1

17. 4x^2-12xy+9y^2-16z^2 / 2x^2z-3xyz+4xz^2

18. 3a^2bc+ab^2c-2abc^2 / 9a^2-b^2+4bc-4c^2

Answer 1

1.) b
2.)0.5-8x^2
3) (x+3)/(x+2)
4) (y+2)/(y-1)
5) (x+5)/(x+2)
6) (x+4)/(x-4)
7)