(4x+5y+5)(4x+5y-5)=

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Solution for (4x+5y+5)(4x+5y-5)= equation: 


Simplifying
(4x + 5y + 5)(4x + 5y + -5) = 0

Reorder the terms:
(5 + 4x + 5y)(4x + 5y + -5) = 0

Reorder the terms:
(5 + 4x + 5y)(-5 + 4x + 5y) = 0

Multiply (5 + 4x + 5y) * (-5 + 4x + 5y)
(5(-5 + 4x + 5y) + 4x * (-5 + 4x + 5y) + 5y * (-5 + 4x + 5y)) = 0
((-5 * 5 + 4x * 5 + 5y * 5) + 4x * (-5 + 4x + 5y) + 5y * (-5 + 4x + 5y)) = 0
((-25 + 20x + 25y) + 4x * (-5 + 4x + 5y) + 5y * (-5 + 4x + 5y)) = 0
(-25 + 20x + 25y + (-5 * 4x + 4x * 4x + 5y * 4x) + 5y * (-5 + 4x + 5y)) = 0

Reorder the terms:
(-25 + 20x + 25y + (-20x + 20xy + 16x2) + 5y * (-5 + 4x + 5y)) = 0
(-25 + 20x + 25y + (-20x + 20xy + 16x2) + 5y * (-5 + 4x + 5y)) = 0
(-25 + 20x + 25y + -20x + 20xy + 16x2 + (-5 * 5y + 4x * 5y + 5y * 5y)) = 0

Reorder the terms:
(-25 + 20x + 25y + -20x + 20xy + 16x2 + (20xy + -25y + 25y2)) = 0
(-25 + 20x + 25y + -20x + 20xy + 16x2 + (20xy + -25y + 25y2)) = 0

Reorder the terms:
(-25 + 20x + -20x + 20xy + 20xy + 16x2 + 25y + -25y + 25y2) = 0

Combine like terms: 20x + -20x = 0
(-25 + 0 + 20xy + 20xy + 16x2 + 25y + -25y + 25y2) = 0
(-25 + 20xy + 20xy + 16x2 + 25y + -25y + 25y2) = 0

Combine like terms: 20xy + 20xy = 40xy
(-25 + 40xy + 16x2 + 25y + -25y + 25y2) = 0

Combine like terms: 25y + -25y = 0
(-25 + 40xy + 16x2 + 0 + 25y2) = 0
(-25 + 40xy + 16x2 + 25y2) = 0

Solving
-25 + 40xy + 16x2 + 25y2 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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