Simplify the following expression.

x+3 1 xsq2-x-6
____ + _____ +________
x-3 x+3 xsq2-9

Create a common denominator of (x^2 -9) and combine terms in the numerator/

[(x+3)(x+3) + (x-3) +(x-3)(x+2)]/[x^2-9)
See if you can simplify the numerator.