Question 622198
i believe i can clarify this for you. first notice that {{{-7/28}}} = {{{-1/4}}} now {{{x/x^5}}} = {{{1/x^4}}} similarly, {{{y^2/y}}} = {{{y}}} so we get {{{(-1/4)*(1/x^4)*(y)}}} which gives us {{{-y/4x^4}}}