(3x+4y-7)(3x+4y+7)=

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Solution for (3x+4y-7)(3x+4y+7)= equation: 


Simplifying
(3x + 4y + -7)(3x + 4y + 7) = 0

Reorder the terms:
(-7 + 3x + 4y)(3x + 4y + 7) = 0

Reorder the terms:
(-7 + 3x + 4y)(7 + 3x + 4y) = 0

Multiply (-7 + 3x + 4y) * (7 + 3x + 4y)
(-7(7 + 3x + 4y) + 3x * (7 + 3x + 4y) + 4y * (7 + 3x + 4y)) = 0
((7 * -7 + 3x * -7 + 4y * -7) + 3x * (7 + 3x + 4y) + 4y * (7 + 3x + 4y)) = 0
((-49 + -21x + -28y) + 3x * (7 + 3x + 4y) + 4y * (7 + 3x + 4y)) = 0
(-49 + -21x + -28y + (7 * 3x + 3x * 3x + 4y * 3x) + 4y * (7 + 3x + 4y)) = 0

Reorder the terms:
(-49 + -21x + -28y + (21x + 12xy + 9x2) + 4y * (7 + 3x + 4y)) = 0
(-49 + -21x + -28y + (21x + 12xy + 9x2) + 4y * (7 + 3x + 4y)) = 0
(-49 + -21x + -28y + 21x + 12xy + 9x2 + (7 * 4y + 3x * 4y + 4y * 4y)) = 0

Reorder the terms:
(-49 + -21x + -28y + 21x + 12xy + 9x2 + (12xy + 28y + 16y2)) = 0
(-49 + -21x + -28y + 21x + 12xy + 9x2 + (12xy + 28y + 16y2)) = 0

Reorder the terms:
(-49 + -21x + 21x + 12xy + 12xy + 9x2 + -28y + 28y + 16y2) = 0

Combine like terms: -21x + 21x = 0
(-49 + 0 + 12xy + 12xy + 9x2 + -28y + 28y + 16y2) = 0
(-49 + 12xy + 12xy + 9x2 + -28y + 28y + 16y2) = 0

Combine like terms: 12xy + 12xy = 24xy
(-49 + 24xy + 9x2 + -28y + 28y + 16y2) = 0

Combine like terms: -28y + 28y = 0
(-49 + 24xy + 9x2 + 0 + 16y2) = 0
(-49 + 24xy + 9x2 + 16y2) = 0

Solving
-49 + 24xy + 9x2 + 16y2 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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