Asked by Deborah

Write as a single fraction
1/1-x +2/1+x
So this is how I did it
Finding LCM
1+x +2(1+x)/(1-x)(1+x)

Answers

Answered by Damon
I am going to guess that your mean:

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

multiply tops and bottoms by
[(1-x)(1+x)]

[(1+x) + 2(1-x) ] /(1-x^2)

**** remember a^2-b^2 =(a-b)(a+b) ***

= [3 - x]/(1-x^2)
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