Question 975226
Center is (-2,-2)  You change the sign of each.
The vertices are along the y-axis, since that is how the ellipse is oriented with regard to the major axis.  They are sqrt (25) or 5.  They are at (-2,-7) and (-2,+3)
The major axis is 10 units long; the minor axis is 4 units long.  It is the square root of the denominator multiplied by 2.

a^2-c^2=b^2
25-21=4
c^2=21;; c= sqrt(21) ;  The foci are sqrt(21) from the center, along the y-axis, so they are at (-2, -2+sqrt(21) and (-2, -2- sqrt(21))

eccentricity is c/a, and that is sqrt (21)/5