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Simplifying 4.9x2 + -12.5x + 45 = 0 Reorder the terms: 45 + -12.5x + 4.9x2 = 0 Solving 45 + -12.5x + 4.9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4.9 the coefficient of the squared term: Divide each side by '4.9'. 9.183673469 + -2.551020408x + x2 = 0 Move the constant term to the right: Add '-9.183673469' to each side of the equation. 9.183673469 + -2.551020408x + -9.183673469 + x2 = 0 + -9.183673469 Reorder the terms: 9.183673469 + -9.183673469 + -2.551020408x + x2 = 0 + -9.183673469 Combine like terms: 9.183673469 + -9.183673469 = 0.000000000 0.000000000 + -2.551020408x + x2 = 0 + -9.183673469 -2.551020408x + x2 = 0 + -9.183673469 Combine like terms: 0 + -9.183673469 = -9.183673469 -2.551020408x + x2 = -9.183673469 The x term is -2.551020408x. Take half its coefficient (-1.275510204). Square it (1.626926281) and add it to both sides. Add '1.626926281' to each side of the equation. -2.551020408x + 1.626926281 + x2 = -9.183673469 + 1.626926281 Reorder the terms: 1.626926281 + -2.551020408x + x2 = -9.183673469 + 1.626926281 Combine like terms: -9.183673469 + 1.626926281 = -7.556747188 1.626926281 + -2.551020408x + x2 = -7.556747188 Factor a perfect square on the left side: (x + -1.275510204)(x + -1.275510204) = -7.556747188 Can't calculate square root of the right side. The solution to this equation could not be determined.
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