The foci of the ellipse 25 x ^(2) + 4y...

The foci of the ellipse
`25 x ^(2) + 4y ^(2) + 100x -4y + 100 =0` are

A

`((5pi sqrt21)/(10), -2)`

B

`(-2, (5pm sqrt21)/(10))`

C

`((2pmsqrt21)/(10), -2)`

D

`(-2, (2pm sqrt21)/(10))`

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The correct Answer is:

B

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