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Simplifying 18x2 + 30x + 19 = 0 Reorder the terms: 19 + 30x + 18x2 = 0 Solving 19 + 30x + 18x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 18 the coefficient of the squared term: Divide each side by '18'. 1.055555556 + 1.666666667x + x2 = 0 Move the constant term to the right: Add '-1.055555556' to each side of the equation. 1.055555556 + 1.666666667x + -1.055555556 + x2 = 0 + -1.055555556 Reorder the terms: 1.055555556 + -1.055555556 + 1.666666667x + x2 = 0 + -1.055555556 Combine like terms: 1.055555556 + -1.055555556 = 0.000000000 0.000000000 + 1.666666667x + x2 = 0 + -1.055555556 1.666666667x + x2 = 0 + -1.055555556 Combine like terms: 0 + -1.055555556 = -1.055555556 1.666666667x + x2 = -1.055555556 The x term is 1.666666667x. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667x + 0.6944444447 + x2 = -1.055555556 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667x + x2 = -1.055555556 + 0.6944444447 Combine like terms: -1.055555556 + 0.6944444447 = -0.3611111113 0.6944444447 + 1.666666667x + x2 = -0.3611111113 Factor a perfect square on the left side: (x + 0.8333333335)(x + 0.8333333335) = -0.3611111113 Can't calculate square root of the right side. The solution to this equation could not be determined.
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