how to solve 2x+5/x^2-3x-10+x+1/x+2????

Question

anonymous · Answer

you can't

ranga · Answer

To solve for x you have to have an equation.
There is no equation here.
Also you can click on the Equation button below the reply box and retype the problem so it is clearer.

anonymous · Answer

the question that i have to answer is this :1.	Two fellow students, Theo and Paula, have added two rational expressions. They ended up at different answers so they have asked you to check their work. Please explain to them any errors that you find.

anonymous · Answer

I guess I worded it wrong i didn't realize!

ranga · Answer

Theo's mistake is in step (3) where he multiplies the top expression on the left by (x+2).  There is no need to touch the left expression.  Only the right expression has to be multiplied top and bottom by (x-5) in order to make the denominator the same so the two expressions can be added.  The second mistake Theo makes is he multiplies only the top by (x+2).  When you multiply the top you have to multiply the bottom too.

anonymous · Answer

Thank you so much!!!!

ranga · Answer

You are welcome.

Paula has mistakes too...

ranga · Answer

She cancels out (x+2) and (x-5) across an addition.  She cannot do that.  You can cancel common factors from top and bottom of the same expression.  Or you can cancel common factors from top and bottom across two expressions if there is a multiplication sign in between the two expressions.  You cannot cancel across two expressions if there is a addition or subtraction sign in between the two expressions.