(3*x*x)+(6*x*y)+(3*y*y)-(4*x)+(5*y)-12=0

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Solution for (3*x*x)+(6*x*y)+(3*y*y)-(4*x)+(5*y)-12=0 equation: 


Simplifying
(3x * x) + (6x * y) + (3y * y) + -1(4x) + (5y) + -12 = 0

Multiply x * x
(3x2) + (6x * y) + (3y * y) + -1(4x) + (5y) + -12 = 0

Multiply x * y
(3x2) + (6xy) + (3y * y) + -1(4x) + (5y) + -12 = 0

Multiply y * y
(3x2) + (6xy) + (3y2) + -1(4x) + (5y) + -12 = 0

Remove parenthesis around (4x)
(3x2) + (6xy) + (3y2) + -1 * 4x + (5y) + -12 = 0

Multiply -1 * 4
(3x2) + (6xy) + (3y2) + -4x + (5y) + -12 = 0

Reorder the terms:
-12 + -4x + (6xy) + (3x2) + (5y) + (3y2) = 0

Solving
-12 + -4x + (6xy) + (3x2) + (5y) + (3y2) = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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