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Mathematics
Mathematics
Problem
Find the radius and center of the circle that is the graph of the equation
4
x
2
+
4
y
2
+
4
x
−
16
y
=
7
4x^2 + 4y^2 + 4x - 16y = 7
4
x
2
+
4
y
2
+
4
x
−
16
y
=
7
.
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