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Simplifying 4 + 14x2 + -7x = 0 Reorder the terms: 4 + -7x + 14x2 = 0 Solving 4 + -7x + 14x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 14 the coefficient of the squared term: Divide each side by '14'. 0.2857142857 + -0.5x + x2 = 0 Move the constant term to the right: Add '-0.2857142857' to each side of the equation. 0.2857142857 + -0.5x + -0.2857142857 + x2 = 0 + -0.2857142857 Reorder the terms: 0.2857142857 + -0.2857142857 + -0.5x + x2 = 0 + -0.2857142857 Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000 0.0000000000 + -0.5x + x2 = 0 + -0.2857142857 -0.5x + x2 = 0 + -0.2857142857 Combine like terms: 0 + -0.2857142857 = -0.2857142857 -0.5x + x2 = -0.2857142857 The x term is -0.5x. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5x + 0.0625 + x2 = -0.2857142857 + 0.0625 Reorder the terms: 0.0625 + -0.5x + x2 = -0.2857142857 + 0.0625 Combine like terms: -0.2857142857 + 0.0625 = -0.2232142857 0.0625 + -0.5x + x2 = -0.2232142857 Factor a perfect square on the left side: (x + -0.25)(x + -0.25) = -0.2232142857 Can't calculate square root of the right side. The solution to this equation could not be determined.
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