Thursday

January 29, 2015

January 29, 2015

Posted by **Amy** on Sunday, January 23, 2011 at 10:53pm.

2. (x)/(x^2-81)-(9)/(81-x^2) =

For the first one the answer was 16x^8/25 but I don't know how to get that. For the second one the answer is 1/x-9 and I also don't know how to get that one.

- Math please help -
**Reiny**, Sunday, January 23, 2011 at 11:08pmAmy , you should check if your previous same post has been answered before posting it again

http://www.jiskha.com/display.cgi?id=1295837377

**Answer this Question**

**Related Questions**

Intermediate Algebra - Am I going in the right track? 8x -1/x + 5x - 3/2x = 16x^...

Math - Simplify each rational expression. Can you please show me the steps on ...

Algebra - There are two solutions to | 16x - 5 | = 3. The greatest solution is ...

Math - find any stationary points of the function g(x) = (2x-3)square root of 5+...

Please Help (Math) - You have to simplify each expression: 1/R+1/T multiply the ...

Math- Completely confused! - Simplify each expression (where possible) and ...

Math+Log - Simplify the expression: The first 7 is regular size and the log7x ...

Expression Help - simplify the following expression 1/4 *fraction* (24-16x) ...

math,correction plz - can someone correct my math...thanks... Perform the ...

algebra - Solve the system by addition or substitution. 16x-4y=20 y=4x-4 I ask ...