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Simplifying 18x2 + 5x + 1 = 0 Reorder the terms: 1 + 5x + 18x2 = 0 Solving 1 + 5x + 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'. 0.05555555556 + 0.2777777778x + x2 = 0 Move the constant term to the right: Add '-0.05555555556' to each side of the equation. 0.05555555556 + 0.2777777778x + -0.05555555556 + x2 = 0 + -0.05555555556 Reorder the terms: 0.05555555556 + -0.05555555556 + 0.2777777778x + x2 = 0 + -0.05555555556 Combine like terms: 0.05555555556 + -0.05555555556 = 0.00000000000 0.00000000000 + 0.2777777778x + x2 = 0 + -0.05555555556 0.2777777778x + x2 = 0 + -0.05555555556 Combine like terms: 0 + -0.05555555556 = -0.05555555556 0.2777777778x + x2 = -0.05555555556 The x term is 0.2777777778x. Take half its coefficient (0.1388888889). Square it (0.01929012346) and add it to both sides. Add '0.01929012346' to each side of the equation. 0.2777777778x + 0.01929012346 + x2 = -0.05555555556 + 0.01929012346 Reorder the terms: 0.01929012346 + 0.2777777778x + x2 = -0.05555555556 + 0.01929012346 Combine like terms: -0.05555555556 + 0.01929012346 = -0.0362654321 0.01929012346 + 0.2777777778x + x2 = -0.0362654321 Factor a perfect square on the left side: (x + 0.1388888889)(x + 0.1388888889) = -0.0362654321 Can't calculate square root of the right side. The solution to this equation could not be determined.
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