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Simplifying 3x2 + 9.5x + 18.5 = 0 Reorder the terms: 18.5 + 9.5x + 3x2 = 0 Solving 18.5 + 9.5x + 3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 6.166666667 + 3.166666667x + x2 = 0 Move the constant term to the right: Add '-6.166666667' to each side of the equation. 6.166666667 + 3.166666667x + -6.166666667 + x2 = 0 + -6.166666667 Reorder the terms: 6.166666667 + -6.166666667 + 3.166666667x + x2 = 0 + -6.166666667 Combine like terms: 6.166666667 + -6.166666667 = 0.000000000 0.000000000 + 3.166666667x + x2 = 0 + -6.166666667 3.166666667x + x2 = 0 + -6.166666667 Combine like terms: 0 + -6.166666667 = -6.166666667 3.166666667x + x2 = -6.166666667 The x term is 3.166666667x. Take half its coefficient (1.583333334). Square it (2.506944447) and add it to both sides. Add '2.506944447' to each side of the equation. 3.166666667x + 2.506944447 + x2 = -6.166666667 + 2.506944447 Reorder the terms: 2.506944447 + 3.166666667x + x2 = -6.166666667 + 2.506944447 Combine like terms: -6.166666667 + 2.506944447 = -3.65972222 2.506944447 + 3.166666667x + x2 = -3.65972222 Factor a perfect square on the left side: (x + 1.583333334)(x + 1.583333334) = -3.65972222 Can't calculate square root of the right side. The solution to this equation could not be determined.
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