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Simplifying 17x2 + -21x = -18 Reorder the terms: -21x + 17x2 = -18 Solving -21x + 17x2 = -18 Solving for variable 'x'. Reorder the terms: 18 + -21x + 17x2 = -18 + 18 Combine like terms: -18 + 18 = 0 18 + -21x + 17x2 = 0 Begin completing the square. Divide all terms by 17 the coefficient of the squared term: Divide each side by '17'. 1.058823529 + -1.235294118x + x2 = 0 Move the constant term to the right: Add '-1.058823529' to each side of the equation. 1.058823529 + -1.235294118x + -1.058823529 + x2 = 0 + -1.058823529 Reorder the terms: 1.058823529 + -1.058823529 + -1.235294118x + x2 = 0 + -1.058823529 Combine like terms: 1.058823529 + -1.058823529 = 0.000000000 0.000000000 + -1.235294118x + x2 = 0 + -1.058823529 -1.235294118x + x2 = 0 + -1.058823529 Combine like terms: 0 + -1.058823529 = -1.058823529 -1.235294118x + x2 = -1.058823529 The x term is -1.235294118x. Take half its coefficient (-0.617647059). Square it (0.3814878895) and add it to both sides. Add '0.3814878895' to each side of the equation. -1.235294118x + 0.3814878895 + x2 = -1.058823529 + 0.3814878895 Reorder the terms: 0.3814878895 + -1.235294118x + x2 = -1.058823529 + 0.3814878895 Combine like terms: -1.058823529 + 0.3814878895 = -0.6773356395 0.3814878895 + -1.235294118x + x2 = -0.6773356395 Factor a perfect square on the left side: (x + -0.617647059)(x + -0.617647059) = -0.6773356395 Can't calculate square root of the right side. The solution to this equation could not be determined.
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