r^2+2r=A

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Solution for r^2+2r=A equation: 


Simplifying
r2 + 2r = A

Reorder the terms:
2r + r2 = A

Solving
2r + r2 = A

Solving for variable 'r'.

Reorder the terms:
-1A + 2r + r2 = A + -1A

Combine like terms: A + -1A = 0
-1A + 2r + r2 = 0

The solution to this equation could not be determined.

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