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OpenStudy (anonymous):
Please Help :) Find the center and radius of a circle with the given equation and then graph the circle. x^2+y^2+20x-22y+157=0
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OpenStudy (campbell_st):
complete the squares for x and y \[x^2 + 20x + ? +y^2 - 22y + ?? = -157\] so if the equations in x and y are perfect squares what would be added for ? and ??
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