Question

3с/(a^2-c^2 )-2/(a-c)

Answer 1

3с/(a^2-c^2 ) - 2/(a-c) = 3с/(a-c )*(a+с) - 2/(a-c) = 3c - 2c -2a/(a-c)*(a+c) = c-2a/a^2-c^2