x^2+y^2+8x+4y=-21

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Solution for x^2+y^2+8x+4y=-21 equation: 


Simplifying
x2 + y2 + 8x + 4y = -21

Reorder the terms:
8x + x2 + 4y + y2 = -21

Solving
8x + x2 + 4y + y2 = -21

Solving for variable 'x'.

Reorder the terms:
21 + 8x + x2 + 4y + y2 = -21 + 21

Combine like terms: -21 + 21 = 0
21 + 8x + x2 + 4y + y2 = 0

The solution to this equation could not be determined.

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