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Simplifying 9x2 + -139x + 930 = 0 Reorder the terms: 930 + -139x + 9x2 = 0 Solving 930 + -139x + 9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 103.3333333 + -15.44444444x + x2 = 0 Move the constant term to the right: Add '-103.3333333' to each side of the equation. 103.3333333 + -15.44444444x + -103.3333333 + x2 = 0 + -103.3333333 Reorder the terms: 103.3333333 + -103.3333333 + -15.44444444x + x2 = 0 + -103.3333333 Combine like terms: 103.3333333 + -103.3333333 = 0.0000000 0.0000000 + -15.44444444x + x2 = 0 + -103.3333333 -15.44444444x + x2 = 0 + -103.3333333 Combine like terms: 0 + -103.3333333 = -103.3333333 -15.44444444x + x2 = -103.3333333 The x term is -15.44444444x. Take half its coefficient (-7.72222222). Square it (59.63271602) and add it to both sides. Add '59.63271602' to each side of the equation. -15.44444444x + 59.63271602 + x2 = -103.3333333 + 59.63271602 Reorder the terms: 59.63271602 + -15.44444444x + x2 = -103.3333333 + 59.63271602 Combine like terms: -103.3333333 + 59.63271602 = -43.70061728 59.63271602 + -15.44444444x + x2 = -43.70061728 Factor a perfect square on the left side: (x + -7.72222222)(x + -7.72222222) = -43.70061728 Can't calculate square root of the right side. The solution to this equation could not be determined.
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