[(7x-4)+2y][(7x-4)-2y]=

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Solution for [(7x-4)+2y][(7x-4)-2y]= equation: 


Simplifying
[(7x + -4) + 2y][(7x + -4) + -2y] = 0

Reorder the terms:
[(-4 + 7x) + 2y][(7x + -4) + -2y] = 0

Remove parenthesis around (-4 + 7x)
[-4 + 7x + 2y][(7x + -4) + -2y] = 0

Reorder the terms:
[-4 + 7x + 2y][(-4 + 7x) + -2y] = 0

Remove parenthesis around (-4 + 7x)
[-4 + 7x + 2y][-4 + 7x + -2y] = 0

Multiply [-4 + 7x + 2y] * [-4 + 7x + -2y]
[-4[-4 + 7x + -2y] + 7x * [-4 + 7x + -2y] + 2y * [-4 + 7x + -2y]] = 0
[[-4 * -4 + 7x * -4 + -2y * -4] + 7x * [-4 + 7x + -2y] + 2y * [-4 + 7x + -2y]] = 0
[[16 + -28x + 8y] + 7x * [-4 + 7x + -2y] + 2y * [-4 + 7x + -2y]] = 0
[16 + -28x + 8y + [-4 * 7x + 7x * 7x + -2y * 7x] + 2y * [-4 + 7x + -2y]] = 0

Reorder the terms:
[16 + -28x + 8y + [-28x + -14xy + 49x2] + 2y * [-4 + 7x + -2y]] = 0
[16 + -28x + 8y + [-28x + -14xy + 49x2] + 2y * [-4 + 7x + -2y]] = 0
[16 + -28x + 8y + -28x + -14xy + 49x2 + [-4 * 2y + 7x * 2y + -2y * 2y]] = 0

Reorder the terms:
[16 + -28x + 8y + -28x + -14xy + 49x2 + [14xy + -8y + -4y2]] = 0
[16 + -28x + 8y + -28x + -14xy + 49x2 + [14xy + -8y + -4y2]] = 0

Reorder the terms:
[16 + -28x + -28x + -14xy + 14xy + 49x2 + 8y + -8y + -4y2] = 0

Combine like terms: -28x + -28x = -56x
[16 + -56x + -14xy + 14xy + 49x2 + 8y + -8y + -4y2] = 0

Combine like terms: -14xy + 14xy = 0
[16 + -56x + 0 + 49x2 + 8y + -8y + -4y2] = 0
[16 + -56x + 49x2 + 8y + -8y + -4y2] = 0

Combine like terms: 8y + -8y = 0
[16 + -56x + 49x2 + 0 + -4y2] = 0
[16 + -56x + 49x2 + -4y2] = 0

Solving
16 + -56x + 49x2 + -4y2 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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