SOLUTION: Please add the following rational expressions 1.{{{5n/3+4n/3}}} 2.{{{x/(x+1)(x+8)+ 8/x^2+9x+8}}} 3.{{{a/a^2-4+-2/a^2-4}}}

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Question 145462: Please add the following rational expressions
1.
2.
3.

Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
The denominators are the same, so just add the numerators;
3 will cancel into 9:
1. + = = 3n
:
2. +
Factor the 2nd denominator and you can see that you can add the numerators:
+ =
The (x+8)'s will cancel, leaving:

:
Same rules apply here:
3. + =
However, the denominator can be factored (the difference of squares)

You can see he (a-2)'s will cancel leaving us with:

;
:
Did this help you understand this stuff? Let me know please.

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