-atan(one /x)/(x + two)^ two - one /(x^ two *(one + x^(- two))*(x + two)) = zero
minus arc tangent of gent of (1 divide by x) divide by (x plus 2) squared minus 1 divide by (x squared multiply by (1 plus x to the power of ( minus 2)) multiply by (x plus 2)) equally 0
minus arc tangent of gent of (one divide by x) divide by (x plus two) to the power of two minus one divide by (x to the power of two multiply by (one plus x to the power of ( minus two)) multiply by (x plus two)) equally zero