Math Questions...?

Question

10. -6g + 12/g^2 + 2g - 35 ÷ g^2 - 4/-g^4 + 5g^3

22. -6d/3t x 3t^3 - 3t/-6d^2

25. j^2 - 144/j^2-20j+96

14. -4r/(r-7)(r+3) + r^2-21/(r-7)(r+3)

7.6x/x^2 - 3x/x^2

Answer 1

-6g+12/g^2+2g-35
-------------------------
g^2-4/-g^4+5g^3

-6(g+2)/(g+5)(g-7)
-------------------------
(g-2)(g+2) / -g^3(g+5)

-6(g-7)/(g-2)-g^3 answer

22. -6d/3t * 3t^3 -3t/-6d^2
-1/3t -3t(t^2-1)
-1/(t-1)(t+1) answer

25. j^2-144./ j^2-20j+96
(j-12)(j+12)/(j-12)(j+8)
j+12/j+8 answer

14. -4r/(r-7)(r+3)+r^2-21/(r-7)(r+3)
-4r+r^2-21/r-7 r+3
(r-7)(r+3)/(r-7)(r+3)=1 answer

7. 6x./x^2- 3x/x^2
6x-3x/x^2=
3x/x^2 answer