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Simplifying 49k2 + -56k + 18 = 0 Reorder the terms: 18 + -56k + 49k2 = 0 Solving 18 + -56k + 49k2 = 0 Solving for variable 'k'. Begin completing the square. Divide all terms by 49 the coefficient of the squared term: Divide each side by '49'. 0.3673469388 + -1.142857143k + k2 = 0 Move the constant term to the right: Add '-0.3673469388' to each side of the equation. 0.3673469388 + -1.142857143k + -0.3673469388 + k2 = 0 + -0.3673469388 Reorder the terms: 0.3673469388 + -0.3673469388 + -1.142857143k + k2 = 0 + -0.3673469388 Combine like terms: 0.3673469388 + -0.3673469388 = 0.0000000000 0.0000000000 + -1.142857143k + k2 = 0 + -0.3673469388 -1.142857143k + k2 = 0 + -0.3673469388 Combine like terms: 0 + -0.3673469388 = -0.3673469388 -1.142857143k + k2 = -0.3673469388 The k term is -1.142857143k. Take half its coefficient (-0.5714285715). Square it (0.3265306123) and add it to both sides. Add '0.3265306123' to each side of the equation. -1.142857143k + 0.3265306123 + k2 = -0.3673469388 + 0.3265306123 Reorder the terms: 0.3265306123 + -1.142857143k + k2 = -0.3673469388 + 0.3265306123 Combine like terms: -0.3673469388 + 0.3265306123 = -0.0408163265 0.3265306123 + -1.142857143k + k2 = -0.0408163265 Factor a perfect square on the left side: (k + -0.5714285715)(k + -0.5714285715) = -0.0408163265 Can't calculate square root of the right side. The solution to this equation could not be determined.
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