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Simplifying -7x + 6 + 20x2 = 0 Reorder the terms: 6 + -7x + 20x2 = 0 Solving 6 + -7x + 20x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 20 the coefficient of the squared term: Divide each side by '20'. 0.3 + -0.35x + x2 = 0 Move the constant term to the right: Add '-0.3' to each side of the equation. 0.3 + -0.35x + -0.3 + x2 = 0 + -0.3 Reorder the terms: 0.3 + -0.3 + -0.35x + x2 = 0 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + -0.35x + x2 = 0 + -0.3 -0.35x + x2 = 0 + -0.3 Combine like terms: 0 + -0.3 = -0.3 -0.35x + x2 = -0.3 The x term is -0.35x. Take half its coefficient (-0.175). Square it (0.030625) and add it to both sides. Add '0.030625' to each side of the equation. -0.35x + 0.030625 + x2 = -0.3 + 0.030625 Reorder the terms: 0.030625 + -0.35x + x2 = -0.3 + 0.030625 Combine like terms: -0.3 + 0.030625 = -0.269375 0.030625 + -0.35x + x2 = -0.269375 Factor a perfect square on the left side: (x + -0.175)(x + -0.175) = -0.269375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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