For the ellipse $16x^2 - 64x + y^2 + 4y + 4 = 0,$ find the distance between the foci.
Question:
For the ellipse $16x^2 - 64x + y^2 + 4y + 4 = 0,$ find the distance between the foci.
Answer:
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4 \sqrt{15}
For the ellipse $16x^2 - 64x + y^2 + 4y + 4 = 0,$ find the distance between the foci.
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