find two rational expressions that have a sum of (9-9x)/(x^2-9)

Question

I need the answer asap

Answer 1

(-3)/(x-3)+(-6)/(x+3) are two expressions that have the given sum

[(-3)(x+3)+(-6)(x-3)]/(x+3)(x-3)

[-3x-9-6x+18]/(x^2-9)

(9-9x)/(x^2-9)

Answer 2

9/(x²-9) and -9x/(x²-9) are two rational expressions, and they have the desired sum.