oops it didnt write the question like i wanted it to, here I'll fix it
4x/x^2-9 - 5x/x^2+4x-+3
I also think the -+ is a typo error by your teacher. Assume it is +
Then you have
4x/[(x+3)(x-3)] - 5x/[(x+3)(x+1)]
I don't guarantee I did that right. I created a common denominator, but it is still pretty messy.
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