# Prove

Prove that k1 and k2 is the equations of two circles. Find the equation of the line that passes through the centers of these circles.

k1: x

k2: x

k1: x

^{2}+y^{2}+2x+4y+1=0k2: x

^{2}+y^{2}-8x+6y+9=0**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

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