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Simplifying (-12x2) + 16x + -13 = 0 Reorder the terms: -13 + 16x + (-12x2) = 0 Solving -13 + 16x + (-12x2) = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -12 the coefficient of the squared term: Divide each side by '-12'. 1.083333333 + -1.333333333x + x2 = 0 Move the constant term to the right: Add '-1.083333333' to each side of the equation. 1.083333333 + -1.333333333x + -1.083333333 + x2 = 0 + -1.083333333 Reorder the terms: 1.083333333 + -1.083333333 + -1.333333333x + x2 = 0 + -1.083333333 Combine like terms: 1.083333333 + -1.083333333 = 0.000000000 0.000000000 + -1.333333333x + x2 = 0 + -1.083333333 -1.333333333x + x2 = 0 + -1.083333333 Combine like terms: 0 + -1.083333333 = -1.083333333 -1.333333333x + x2 = -1.083333333 The x term is -1.333333333x. Take half its coefficient (-0.6666666665). Square it (0.4444444442) and add it to both sides. Add '0.4444444442' to each side of the equation. -1.333333333x + 0.4444444442 + x2 = -1.083333333 + 0.4444444442 Reorder the terms: 0.4444444442 + -1.333333333x + x2 = -1.083333333 + 0.4444444442 Combine like terms: -1.083333333 + 0.4444444442 = -0.6388888888 0.4444444442 + -1.333333333x + x2 = -0.6388888888 Factor a perfect square on the left side: ((x) + -0.6666666665)((x) + -0.6666666665) = -0.6388888888 Can't calculate square root of the right side. The solution to this equation could not be determined.
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