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Simplifying D2 + -4D + 4 = x2 Reorder the terms: 4 + -4D + D2 = x2 Solving 4 + -4D + D2 = x2 Solving for variable 'D'. Combine like terms: x2 + -1x2 = 0 4 + -4D + D2 + -1x2 = 0 The solution to this equation could not be determined.
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