two *(three + two /(x^ four *(one - one /x^ four)))/(x^ four *sqrt(one - one /x^ four)) = zero
2 multiply by (3 plus 2 divide by (x to the power of 4 multiply by (1 minus 1 divide by x to the power of 4))) divide by (x to the power of 4 multiply by square root of (1 minus 1 divide by x to the power of 4)) equally 0
two multiply by (three plus two divide by (x to the power of four multiply by (one minus one divide by x to the power of four))) divide by (x to the power of four multiply by square root of (one minus one divide by x to the power of four)) equally zero