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Simplifying x = 5x2 + -30x + 181 Reorder the terms: x = 181 + -30x + 5x2 Solving x = 181 + -30x + 5x2 Solving for variable 'x'. Reorder the terms: -181 + x + 30x + -5x2 = 181 + -30x + 5x2 + -181 + 30x + -5x2 Combine like terms: x + 30x = 31x -181 + 31x + -5x2 = 181 + -30x + 5x2 + -181 + 30x + -5x2 Reorder the terms: -181 + 31x + -5x2 = 181 + -181 + -30x + 30x + 5x2 + -5x2 Combine like terms: 181 + -181 = 0 -181 + 31x + -5x2 = 0 + -30x + 30x + 5x2 + -5x2 -181 + 31x + -5x2 = -30x + 30x + 5x2 + -5x2 Combine like terms: -30x + 30x = 0 -181 + 31x + -5x2 = 0 + 5x2 + -5x2 -181 + 31x + -5x2 = 5x2 + -5x2 Combine like terms: 5x2 + -5x2 = 0 -181 + 31x + -5x2 = 0 Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. 36.2 + -6.2x + x2 = 0 Move the constant term to the right: Add '-36.2' to each side of the equation. 36.2 + -6.2x + -36.2 + x2 = 0 + -36.2 Reorder the terms: 36.2 + -36.2 + -6.2x + x2 = 0 + -36.2 Combine like terms: 36.2 + -36.2 = 0.0 0.0 + -6.2x + x2 = 0 + -36.2 -6.2x + x2 = 0 + -36.2 Combine like terms: 0 + -36.2 = -36.2 -6.2x + x2 = -36.2 The x term is -6.2x. Take half its coefficient (-3.1). Square it (9.61) and add it to both sides. Add '9.61' to each side of the equation. -6.2x + 9.61 + x2 = -36.2 + 9.61 Reorder the terms: 9.61 + -6.2x + x2 = -36.2 + 9.61 Combine like terms: -36.2 + 9.61 = -26.59 9.61 + -6.2x + x2 = -26.59 Factor a perfect square on the left side: (x + -3.1)(x + -3.1) = -26.59 Can't calculate square root of the right side. The solution to this equation could not be determined.
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