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Simplifying -7k2 + 3k + -7 = 0 Reorder the terms: -7 + 3k + -7k2 = 0 Solving -7 + 3k + -7k2 = 0 Solving for variable 'k'. Begin completing the square. Divide all terms by -7 the coefficient of the squared term: Divide each side by '-7'. 1 + -0.4285714286k + k2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -0.4285714286k + -1 + k2 = 0 + -1 Reorder the terms: 1 + -1 + -0.4285714286k + k2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -0.4285714286k + k2 = 0 + -1 -0.4285714286k + k2 = 0 + -1 Combine like terms: 0 + -1 = -1 -0.4285714286k + k2 = -1 The k term is -0.4285714286k. Take half its coefficient (-0.2142857143). Square it (0.04591836735) and add it to both sides. Add '0.04591836735' to each side of the equation. -0.4285714286k + 0.04591836735 + k2 = -1 + 0.04591836735 Reorder the terms: 0.04591836735 + -0.4285714286k + k2 = -1 + 0.04591836735 Combine like terms: -1 + 0.04591836735 = -0.95408163265 0.04591836735 + -0.4285714286k + k2 = -0.95408163265 Factor a perfect square on the left side: (k + -0.2142857143)(k + -0.2142857143) = -0.95408163265 Can't calculate square root of the right side. The solution to this equation could not be determined.
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