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Simplifying -980 + 191x + -25x2 = 0 Solving -980 + 191x + -25x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -25 the coefficient of the squared term: Divide each side by '-25'. 39.2 + -7.64x + x2 = 0 Move the constant term to the right: Add '-39.2' to each side of the equation. 39.2 + -7.64x + -39.2 + x2 = 0 + -39.2 Reorder the terms: 39.2 + -39.2 + -7.64x + x2 = 0 + -39.2 Combine like terms: 39.2 + -39.2 = 0.0 0.0 + -7.64x + x2 = 0 + -39.2 -7.64x + x2 = 0 + -39.2 Combine like terms: 0 + -39.2 = -39.2 -7.64x + x2 = -39.2 The x term is -7.64x. Take half its coefficient (-3.82). Square it (14.5924) and add it to both sides. Add '14.5924' to each side of the equation. -7.64x + 14.5924 + x2 = -39.2 + 14.5924 Reorder the terms: 14.5924 + -7.64x + x2 = -39.2 + 14.5924 Combine like terms: -39.2 + 14.5924 = -24.6076 14.5924 + -7.64x + x2 = -24.6076 Factor a perfect square on the left side: (x + -3.82)(x + -3.82) = -24.6076 Can't calculate square root of the right side. The solution to this equation could not be determined.
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