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