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Simplifying 15x2 + -1x + 18 = 0 Reorder the terms: 18 + -1x + 15x2 = 0 Solving 18 + -1x + 15x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 15 the coefficient of the squared term: Divide each side by '15'. 1.2 + -0.06666666667x + x2 = 0 Move the constant term to the right: Add '-1.2' to each side of the equation. 1.2 + -0.06666666667x + -1.2 + x2 = 0 + -1.2 Reorder the terms: 1.2 + -1.2 + -0.06666666667x + x2 = 0 + -1.2 Combine like terms: 1.2 + -1.2 = 0.0 0.0 + -0.06666666667x + x2 = 0 + -1.2 -0.06666666667x + x2 = 0 + -1.2 Combine like terms: 0 + -1.2 = -1.2 -0.06666666667x + x2 = -1.2 The x term is -0.06666666667x. Take half its coefficient (-0.03333333334). Square it (0.001111111112) and add it to both sides. Add '0.001111111112' to each side of the equation. -0.06666666667x + 0.001111111112 + x2 = -1.2 + 0.001111111112 Reorder the terms: 0.001111111112 + -0.06666666667x + x2 = -1.2 + 0.001111111112 Combine like terms: -1.2 + 0.001111111112 = -1.198888888888 0.001111111112 + -0.06666666667x + x2 = -1.198888888888 Factor a perfect square on the left side: (x + -0.03333333334)(x + -0.03333333334) = -1.198888888888 Can't calculate square root of the right side. The solution to this equation could not be determined.
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