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Algebra: Ellipses and Circles

1. Find the center of the ellipse given by 64x2 + 4y2 + 128x - 80y +208 = 0
2. Find the radius of the circle defined by x22 + y2 - 6x -16y = 48
3. The distance between the foci of the ellipse defined by 9(x + 6)2 + 25(y - 15)2 = 225
4. What is the coefficient of x3 in the expansion of (2+ x)5

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Solution Summary

Ellipses and circles are analyzed to find radii and distance between foci.

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