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Simplifying 16x2 + -55x + 49 = 0 Reorder the terms: 49 + -55x + 16x2 = 0 Solving 49 + -55x + 16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. 3.0625 + -3.4375x + x2 = 0 Move the constant term to the right: Add '-3.0625' to each side of the equation. 3.0625 + -3.4375x + -3.0625 + x2 = 0 + -3.0625 Reorder the terms: 3.0625 + -3.0625 + -3.4375x + x2 = 0 + -3.0625 Combine like terms: 3.0625 + -3.0625 = 0.0000 0.0000 + -3.4375x + x2 = 0 + -3.0625 -3.4375x + x2 = 0 + -3.0625 Combine like terms: 0 + -3.0625 = -3.0625 -3.4375x + x2 = -3.0625 The x term is -3.4375x. Take half its coefficient (-1.71875). Square it (2.954101563) and add it to both sides. Add '2.954101563' to each side of the equation. -3.4375x + 2.954101563 + x2 = -3.0625 + 2.954101563 Reorder the terms: 2.954101563 + -3.4375x + x2 = -3.0625 + 2.954101563 Combine like terms: -3.0625 + 2.954101563 = -0.108398437 2.954101563 + -3.4375x + x2 = -0.108398437 Factor a perfect square on the left side: (x + -1.71875)(x + -1.71875) = -0.108398437 Can't calculate square root of the right side. The solution to this equation could not be determined.
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