=3a(3a-2b)+b^2-c^2

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Solution for =3a(3a-2b)+b^2-c^2 equation: 


Simplifying
0 = 3a(3a + -2b) + b2 + -1c2
0 = (3a * 3a + -2b * 3a) + b2 + -1c2

Reorder the terms:
0 = (-6ab + 9a2) + b2 + -1c2
0 = (-6ab + 9a2) + b2 + -1c2

Solving
0 = -6ab + 9a2 + b2 + -1c2

Solving for variable 'a'.
Remove the zero:
6ab + -9a2 + -1b2 + c2 = -6ab + 9a2 + b2 + -1c2 + 6ab + -9a2 + -1b2 + c2

Reorder the terms:
6ab + -9a2 + -1b2 + c2 = -6ab + 6ab + 9a2 + -9a2 + b2 + -1b2 + -1c2 + c2

Combine like terms: -6ab + 6ab = 0
6ab + -9a2 + -1b2 + c2 = 0 + 9a2 + -9a2 + b2 + -1b2 + -1c2 + c2
6ab + -9a2 + -1b2 + c2 = 9a2 + -9a2 + b2 + -1b2 + -1c2 + c2

Combine like terms: 9a2 + -9a2 = 0
6ab + -9a2 + -1b2 + c2 = 0 + b2 + -1b2 + -1c2 + c2
6ab + -9a2 + -1b2 + c2 = b2 + -1b2 + -1c2 + c2

Combine like terms: b2 + -1b2 = 0
6ab + -9a2 + -1b2 + c2 = 0 + -1c2 + c2
6ab + -9a2 + -1b2 + c2 = -1c2 + c2

Combine like terms: -1c2 + c2 = 0
6ab + -9a2 + -1b2 + c2 = 0

The solution to this equation could not be determined.

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