(xy-4)(y+4)=

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Solution for (xy-4)(y+4)= equation:


Simplifying
(xy + -4)(y + 4) = 0

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

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

Multiply (-4 + xy) * (4 + y)
(-4(4 + y) + xy(4 + y)) = 0
((4 * -4 + y * -4) + xy(4 + y)) = 0
((-16 + -4y) + xy(4 + y)) = 0
(-16 + -4y + (4 * xy + y * xy)) = 0
(-16 + -4y + (4xy + xy2)) = 0

Reorder the terms:
(-16 + 4xy + xy2 + -4y) = 0
(-16 + 4xy + xy2 + -4y) = 0

Solving
-16 + 4xy + xy2 + -4y = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '16' to each side of the equation.
-16 + 4xy + xy2 + 16 + -4y = 0 + 16

Reorder the terms:
-16 + 16 + 4xy + xy2 + -4y = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 4xy + xy2 + -4y = 0 + 16
4xy + xy2 + -4y = 0 + 16

Combine like terms: 0 + 16 = 16
4xy + xy2 + -4y = 16

Add '4y' to each side of the equation.
4xy + xy2 + -4y + 4y = 16 + 4y

Combine like terms: -4y + 4y = 0
4xy + xy2 + 0 = 16 + 4y
4xy + xy2 = 16 + 4y

Reorder the terms:
-16 + 4xy + xy2 + -4y = 16 + 4y + -16 + -4y

Reorder the terms:
-16 + 4xy + xy2 + -4y = 16 + -16 + 4y + -4y

Combine like terms: 16 + -16 = 0
-16 + 4xy + xy2 + -4y = 0 + 4y + -4y
-16 + 4xy + xy2 + -4y = 4y + -4y

Combine like terms: 4y + -4y = 0
-16 + 4xy + xy2 + -4y = 0

The solution to this equation could not be determined.

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