Question 753812
Center point (0,0) and focus at (0,3) and (0,-5)

I can't find the ellipse equation because the range of focus is too far and not same. If the focus are (0,±3) or (0,±5) with center point at (0,0) you will find the answer. Or if the focus point at (0,3) and (0,-5), then you must change center point to (0,-1)