# Math Help - single fraction

1. ## single fraction

express as a single fraction (1/x)-(2/x-2)+(x-1/x^2+1)

and (x+1/x^2+1)+(1/x+1)-(1/(x-1)^2)+(2/x-2)

2. just put everything to the same denominator then simplify, factorise and cut out the redundant values.

3. Originally Posted by joey1

express as a single fraction (1/x)-(2/x-2)+(x-1/x^2+1)

and (x+1/x^2+1)+(1/x+1)-(1/(x-1)^2)+(2/x-2)

As furor celtica said you need to make everything have the same denominator, which for your question would be:

$\frac{A}{x(x-2)(x^2+1)}$

For the numerator you need to multiply each term by the other 2 denominator, for example:

$\frac{1(x-2)(x^2+1)...}{x(x-2)(x^2+1)}$.

Repeat this method for your other question.

Hope this helps

4. thanx guys

5. okay guys plese could you confirm my answers
1.x-5x^2-2/x(x-2)(x^2+1)
2.x^3-x^2+2x/x^2-1