Write two expressions whose sum is x - 3 / x + 2

This is rational expressions by the way

I'm assuming the given expression is (x-3) / (x+2)

One way to break that down into the form A+B, where A and B are rational expressions, is to have

A = x / (x+2)

B = - 3 / (x+2)

The numerators x and - 3 are added to get x-3 and the result is placed over the LCD (lowest common denominator)