Expert: Richard J. Raridon - 8/22/2011

Question
Hii, i see that u guys help alot. And i really need help right now! PLease help me =(
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1.   (z^3 - 4z)/(z^2 - 4z + 4)
2.   (a - x)^2 / x^2 - a^2
3.   (9-4z^2)/(6z^2 - 5z - 6)
4.   ((t+1)(t^2 - 1))/((t-1)(t+1)^2)
5.   (t^4 - c^4)/((t+c)^2(t^2 + c^2))
6.   h(y) = (y3-8)(y+2)-3
7.   ((t+1)(t+4))/(t-1)
8.   (x^4 - 2x^2y^2 + y^4)/(x^4 - x^3y - xy^3 + y^4)
10.   z(z-1) = z(z+1)
11.   2a2 = 7a+4
12.   (n-1)2 = 1
13.   m2 = m
14.   4(3d-5) = 2(5d+1)
15.   (-26/25) / (39/20)
16.   [22z^2/15][-5/11z^3]
17.   (28x/25)/(21x^3/15)
18.   (2uv)/(2u^2/v)/(2v^2/u)
19.   (7x^2/9y)/[4x]/15y^2]*[35/6xy]^-1
20.   [t-2/t+3][t^2+2t-3/t^2-t-2]
21.   [x^2/x+1][x+1/x+2]/[x/((x+1)(x+2))]
22.   (3x^2 - 8x + 4)/(9x^2 – 4)/(3x^2 - 5x - 2)/(9x^2 - 3x - 2)
23.   (x^2-y^2)/(x + y)/(x^4 - y^4)
24.   (7/10)+(11/20)-(9/10)
25.   (2/3)-(3/5)+(4/15)
26.   (7/12)-1+(19/20)
27.   ((x + 3)/5) - (2x + 1)/10
28.   ((x+3)/5) + (x-2)/2x
29.   ((2/3) - (5/6))/((1/3)+(2/9))
30.   (z - (1/z))/(1 -(1/z))
31.   (a^-2 - b^-2)/(a^-1 + b^-1)
32.   (1/p^2 - 1/q^2)/(2/p^2 - 1/pq - /q^2)
33.   (x^-2 - x^2)/(x^-1 - x)
34.   (1/x - 1/y)/(y/x - x/y)

Answer
1. z(z+2)/(z-2)
2. (x-a)(x+a)
3. -(3+2z)/(3z+2)
4. 1
5. (t-c)/(t+c)
6. h(y) = y^4+2y^3-8y-19
7. can's simplify
8. (x+y)^2/(x^2+xy+y^2)
10. only solution is z=0
11. a=4, -1/2
12. n=2
13. m=1
14. d=11
15. -8/15
16. -2/(3z)
17. 4/(5x^2)
18. 2v^3/u^2
19. x^2y^2/2
20. (t-1)/(t+1)
21. x(x+1)
22. (3x-2)/(3x+2)
23. (x-y)(x^4-y^4)
24. 4/5
25. 1/3
26. 8/15
27. 1/2
28. (2x^2+11x-10)/(10x)
29. -3/10
30. z+1
31. (b+a)/(ab)
32. (q+p)/(2q+p)
33. (1+x^2)/x
34. 1/(y+x)