Solve each quadratic in form equation.

1. 4y^4+9=13y^2
2. x-3x^1/2+2=0
3. (x-5)^2+2(x-5)-35=0
4. (x-2)^2-3x-2)+2=0
5. 2(x^2-5)^2-13(x^2-5)+20=0
6. 2x^2/3+5x^1/3-6=0
7. 6x^2/3-5x^1/3-6=0
8. x^-2+4x^-1=12
9. x^4-8x^2+7=0
10. x^4-2x^2-35=0
can someone please help?

Steve had started you with this

http://www.jiskha.com/display.cgi?id=1360948287
back in August, somebody actually worked these out
http://www.jiskha.com/display.cgi?id=1345507661

looks like classic homework dumping to me.