(3x+4y+9)(3x+4y-9)=0

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Solution for (3x+4y+9)(3x+4y-9)=0 equation: 


Simplifying
(3x + 4y + 9)(3x + 4y + -9) = 0

Reorder the terms:
(9 + 3x + 4y)(3x + 4y + -9) = 0

Reorder the terms:
(9 + 3x + 4y)(-9 + 3x + 4y) = 0

Multiply (9 + 3x + 4y) * (-9 + 3x + 4y)
(9(-9 + 3x + 4y) + 3x * (-9 + 3x + 4y) + 4y * (-9 + 3x + 4y)) = 0
((-9 * 9 + 3x * 9 + 4y * 9) + 3x * (-9 + 3x + 4y) + 4y * (-9 + 3x + 4y)) = 0
((-81 + 27x + 36y) + 3x * (-9 + 3x + 4y) + 4y * (-9 + 3x + 4y)) = 0
(-81 + 27x + 36y + (-9 * 3x + 3x * 3x + 4y * 3x) + 4y * (-9 + 3x + 4y)) = 0

Reorder the terms:
(-81 + 27x + 36y + (-27x + 12xy + 9x2) + 4y * (-9 + 3x + 4y)) = 0
(-81 + 27x + 36y + (-27x + 12xy + 9x2) + 4y * (-9 + 3x + 4y)) = 0
(-81 + 27x + 36y + -27x + 12xy + 9x2 + (-9 * 4y + 3x * 4y + 4y * 4y)) = 0

Reorder the terms:
(-81 + 27x + 36y + -27x + 12xy + 9x2 + (12xy + -36y + 16y2)) = 0
(-81 + 27x + 36y + -27x + 12xy + 9x2 + (12xy + -36y + 16y2)) = 0

Reorder the terms:
(-81 + 27x + -27x + 12xy + 12xy + 9x2 + 36y + -36y + 16y2) = 0

Combine like terms: 27x + -27x = 0
(-81 + 0 + 12xy + 12xy + 9x2 + 36y + -36y + 16y2) = 0
(-81 + 12xy + 12xy + 9x2 + 36y + -36y + 16y2) = 0

Combine like terms: 12xy + 12xy = 24xy
(-81 + 24xy + 9x2 + 36y + -36y + 16y2) = 0

Combine like terms: 36y + -36y = 0
(-81 + 24xy + 9x2 + 0 + 16y2) = 0
(-81 + 24xy + 9x2 + 16y2) = 0

Solving
-81 + 24xy + 9x2 + 16y2 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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