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xsquared + 8x + ysquared= 20

What is the area of the circle, in units squared, defined by the equation above?

Is it 36pi

1 answer

x^2 + 8x + 16 + y^2 = 20 + 16 ... (x + 4)^2 + y^2 = 6^2

36 π is correct
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