(one / two - (x + four)/(x + two) + (x + four)^ two /(two *(x + two)^ two))/(x + two) = zero
(1 divide by 2 minus (x plus 4) divide by (x plus 2) plus (x plus 4) squared divide by (2 multiply by (x plus 2) squared )) divide by (x plus 2) equally 0
(one divide by two minus (x plus four) divide by (x plus two) plus (x plus four) to the power of two divide by (two multiply by (x plus two) to the power of two)) divide by (x plus two) equally zero