Question

i have this hyperbola, i am trying to find the foci

Answer 1

\[((x+10)^2/(25))-((y+1)^2/(9))=1\]

Answer 2

i came up with the foci as being : \[-10\pm \sqrt{34},-1\]

Answer 3

is this correct?

Answer 4

I don't do computations, do same translate to origin, use plus/minus a*eccentricity to find foci, translate back.

Answer 5

Mathsurfer, you are correct.