(5x+6y+9)(5x+6y-9)=

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Solution for (5x+6y+9)(5x+6y-9)= equation: 


Simplifying
(5x + 6y + 9)(5x + 6y + -9) = 0

Reorder the terms:
(9 + 5x + 6y)(5x + 6y + -9) = 0

Reorder the terms:
(9 + 5x + 6y)(-9 + 5x + 6y) = 0

Multiply (9 + 5x + 6y) * (-9 + 5x + 6y)
(9(-9 + 5x + 6y) + 5x * (-9 + 5x + 6y) + 6y * (-9 + 5x + 6y)) = 0
((-9 * 9 + 5x * 9 + 6y * 9) + 5x * (-9 + 5x + 6y) + 6y * (-9 + 5x + 6y)) = 0
((-81 + 45x + 54y) + 5x * (-9 + 5x + 6y) + 6y * (-9 + 5x + 6y)) = 0
(-81 + 45x + 54y + (-9 * 5x + 5x * 5x + 6y * 5x) + 6y * (-9 + 5x + 6y)) = 0

Reorder the terms:
(-81 + 45x + 54y + (-45x + 30xy + 25x2) + 6y * (-9 + 5x + 6y)) = 0
(-81 + 45x + 54y + (-45x + 30xy + 25x2) + 6y * (-9 + 5x + 6y)) = 0
(-81 + 45x + 54y + -45x + 30xy + 25x2 + (-9 * 6y + 5x * 6y + 6y * 6y)) = 0

Reorder the terms:
(-81 + 45x + 54y + -45x + 30xy + 25x2 + (30xy + -54y + 36y2)) = 0
(-81 + 45x + 54y + -45x + 30xy + 25x2 + (30xy + -54y + 36y2)) = 0

Reorder the terms:
(-81 + 45x + -45x + 30xy + 30xy + 25x2 + 54y + -54y + 36y2) = 0

Combine like terms: 45x + -45x = 0
(-81 + 0 + 30xy + 30xy + 25x2 + 54y + -54y + 36y2) = 0
(-81 + 30xy + 30xy + 25x2 + 54y + -54y + 36y2) = 0

Combine like terms: 30xy + 30xy = 60xy
(-81 + 60xy + 25x2 + 54y + -54y + 36y2) = 0

Combine like terms: 54y + -54y = 0
(-81 + 60xy + 25x2 + 0 + 36y2) = 0
(-81 + 60xy + 25x2 + 36y2) = 0

Solving
-81 + 60xy + 25x2 + 36y2 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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