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Simplifying 0.0021x2 + -0.286x + 16.28 = 0 Reorder the terms: 16.28 + -0.286x + 0.0021x2 = 0 Solving 16.28 + -0.286x + 0.0021x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 0.0021 the coefficient of the squared term: Divide each side by '0.0021'. 7752.380952 + -136.1904762x + x2 = 0 Move the constant term to the right: Add '-7752.380952' to each side of the equation. 7752.380952 + -136.1904762x + -7752.380952 + x2 = 0 + -7752.380952 Reorder the terms: 7752.380952 + -7752.380952 + -136.1904762x + x2 = 0 + -7752.380952 Combine like terms: 7752.380952 + -7752.380952 = 0.000000 0.000000 + -136.1904762x + x2 = 0 + -7752.380952 -136.1904762x + x2 = 0 + -7752.380952 Combine like terms: 0 + -7752.380952 = -7752.380952 -136.1904762x + x2 = -7752.380952 The x term is -136.1904762x. Take half its coefficient (-68.0952381). Square it (4636.961452) and add it to both sides. Add '4636.961452' to each side of the equation. -136.1904762x + 4636.961452 + x2 = -7752.380952 + 4636.961452 Reorder the terms: 4636.961452 + -136.1904762x + x2 = -7752.380952 + 4636.961452 Combine like terms: -7752.380952 + 4636.961452 = -3115.4195 4636.961452 + -136.1904762x + x2 = -3115.4195 Factor a perfect square on the left side: (x + -68.0952381)(x + -68.0952381) = -3115.4195 Can't calculate square root of the right side. The solution to this equation could not be determined.
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