check math
posted by Anonymous .
Here are my answers. Can you check if I got the right answers? Thank you!
1/(x+h)  1/x= h/(x^2+xh)
(2/x^2)/(10/x^5)= (x^3)/5
[1/(3+x)  1/3]/x= 1/(9+3x)
2x/(x^26x+9)  1/(x+1) 8/(x^22x3)= (x^2+15)/(x^35x^2+3x+9)
first 3 look ok
In the last one I would not have expanded the denominator, leave it as
(x+1)(x3)^2
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