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Simplifying -0.12q2 + 0.18q + -6 = 0 Reorder the terms: -6 + 0.18q + -0.12q2 = 0 Solving -6 + 0.18q + -0.12q2 = 0 Solving for variable 'q'. Begin completing the square. Divide all terms by -0.12 the coefficient of the squared term: Divide each side by '-0.12'. 50 + -1.5q + q2 = 0 Move the constant term to the right: Add '-50' to each side of the equation. 50 + -1.5q + -50 + q2 = 0 + -50 Reorder the terms: 50 + -50 + -1.5q + q2 = 0 + -50 Combine like terms: 50 + -50 = 0 0 + -1.5q + q2 = 0 + -50 -1.5q + q2 = 0 + -50 Combine like terms: 0 + -50 = -50 -1.5q + q2 = -50 The q term is -1.5q. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5q + 0.5625 + q2 = -50 + 0.5625 Reorder the terms: 0.5625 + -1.5q + q2 = -50 + 0.5625 Combine like terms: -50 + 0.5625 = -49.4375 0.5625 + -1.5q + q2 = -49.4375 Factor a perfect square on the left side: (q + -0.75)(q + -0.75) = -49.4375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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