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Simplifying 3x2 + -3x + 56 = 0 Reorder the terms: 56 + -3x + 3x2 = 0 Solving 56 + -3x + 3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 18.66666667 + -1x + x2 = 0 Move the constant term to the right: Add '-18.66666667' to each side of the equation. 18.66666667 + -1x + -18.66666667 + x2 = 0 + -18.66666667 Reorder the terms: 18.66666667 + -18.66666667 + -1x + x2 = 0 + -18.66666667 Combine like terms: 18.66666667 + -18.66666667 = 0.00000000 0.00000000 + -1x + x2 = 0 + -18.66666667 -1x + x2 = 0 + -18.66666667 Combine like terms: 0 + -18.66666667 = -18.66666667 -1x + x2 = -18.66666667 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = -18.66666667 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -18.66666667 + 0.25 Combine like terms: -18.66666667 + 0.25 = -18.41666667 0.25 + -1x + x2 = -18.41666667 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = -18.41666667 Can't calculate square root of the right side. The solution to this equation could not be determined.
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