Can someone please help me with my math?
I'm supposed to fix the problem (number 7) but I still don't think the answer is right.
[url=http://i41.tinypic.com/1fwxhe.jpg]Thanks in advance. [/url]
EDIT: Here's the work: http://i44.tinypic.com/2zqenap.jpg
March 13, 2012
3 Comments • Newest first
OK. Thanks guys.
factor the denominator on the left from x^2-2x-15 to (x-5)(x+3) then you have (x+2) / (x-5)(x+3) + (x)/(x+3) then do a common denominator and you are done
you cannot cancel expressions unless you're multiplying the two.
so in the end, you should still have the denominator of (x-5)(x+3)
&above poster is correct