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Simplifying 12 + -4x + 0.6x2 = 0 Solving 12 + -4x + 0.6x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 0.6 the coefficient of the squared term: Divide each side by '0.6'. 20 + -6.666666667x + x2 = 0 Move the constant term to the right: Add '-20' to each side of the equation. 20 + -6.666666667x + -20 + x2 = 0 + -20 Reorder the terms: 20 + -20 + -6.666666667x + x2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -6.666666667x + x2 = 0 + -20 -6.666666667x + x2 = 0 + -20 Combine like terms: 0 + -20 = -20 -6.666666667x + x2 = -20 The x term is -6.666666667x. Take half its coefficient (-3.333333334). Square it (11.11111112) and add it to both sides. Add '11.11111112' to each side of the equation. -6.666666667x + 11.11111112 + x2 = -20 + 11.11111112 Reorder the terms: 11.11111112 + -6.666666667x + x2 = -20 + 11.11111112 Combine like terms: -20 + 11.11111112 = -8.88888888 11.11111112 + -6.666666667x + x2 = -8.88888888 Factor a perfect square on the left side: (x + -3.333333334)(x + -3.333333334) = -8.88888888 Can't calculate square root of the right side. The solution to this equation could not be determined.
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