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Simplifying (2x + -4y + 7)(2x + -4y + 7) = 0 Reorder the terms: (7 + 2x + -4y)(2x + -4y + 7) = 0 Reorder the terms: (7 + 2x + -4y)(7 + 2x + -4y) = 0 Multiply (7 + 2x + -4y) * (7 + 2x + -4y) (7(7 + 2x + -4y) + 2x * (7 + 2x + -4y) + -4y * (7 + 2x + -4y)) = 0 ((7 * 7 + 2x * 7 + -4y * 7) + 2x * (7 + 2x + -4y) + -4y * (7 + 2x + -4y)) = 0 ((49 + 14x + -28y) + 2x * (7 + 2x + -4y) + -4y * (7 + 2x + -4y)) = 0 (49 + 14x + -28y + (7 * 2x + 2x * 2x + -4y * 2x) + -4y * (7 + 2x + -4y)) = 0 Reorder the terms: (49 + 14x + -28y + (14x + -8xy + 4x2) + -4y * (7 + 2x + -4y)) = 0 (49 + 14x + -28y + (14x + -8xy + 4x2) + -4y * (7 + 2x + -4y)) = 0 (49 + 14x + -28y + 14x + -8xy + 4x2 + (7 * -4y + 2x * -4y + -4y * -4y)) = 0 Reorder the terms: (49 + 14x + -28y + 14x + -8xy + 4x2 + (-8xy + -28y + 16y2)) = 0 (49 + 14x + -28y + 14x + -8xy + 4x2 + (-8xy + -28y + 16y2)) = 0 Reorder the terms: (49 + 14x + 14x + -8xy + -8xy + 4x2 + -28y + -28y + 16y2) = 0 Combine like terms: 14x + 14x = 28x (49 + 28x + -8xy + -8xy + 4x2 + -28y + -28y + 16y2) = 0 Combine like terms: -8xy + -8xy = -16xy (49 + 28x + -16xy + 4x2 + -28y + -28y + 16y2) = 0 Combine like terms: -28y + -28y = -56y (49 + 28x + -16xy + 4x2 + -56y + 16y2) = 0 Solving 49 + 28x + -16xy + 4x2 + -56y + 16y2 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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