Question 681310
Good work on your formula rendering!
{{{((1/(x+h)^2)-(1/x^2))/h=((x^2/x^2/(x+h)^2)-((x+h)^2/x^2/(x+h)^2))/h=((x^2-(x^2+2hx+h^2))/x^2/(x+h)^2)/h=((x^2-x^2-2hx-h^2)/x^2/(x+h)^2)/h=((-2hx-h^2)/x^2/(x+h)^2)(1/h)=-cross(h)(2x+h)/x^2/(x+h)^2/cross(h)=-(2x+h)/x^2/(x+h)^2}}}
 
Sorry about the position of the equal signs. They should all line up with the lowest fraction bar, but I cannot get then to behave.