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Simplifying -18x2 + 107x + -210 = 0 Reorder the terms: -210 + 107x + -18x2 = 0 Solving -210 + 107x + -18x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -18 the coefficient of the squared term: Divide each side by '-18'. 11.66666667 + -5.944444444x + x2 = 0 Move the constant term to the right: Add '-11.66666667' to each side of the equation. 11.66666667 + -5.944444444x + -11.66666667 + x2 = 0 + -11.66666667 Reorder the terms: 11.66666667 + -11.66666667 + -5.944444444x + x2 = 0 + -11.66666667 Combine like terms: 11.66666667 + -11.66666667 = 0.00000000 0.00000000 + -5.944444444x + x2 = 0 + -11.66666667 -5.944444444x + x2 = 0 + -11.66666667 Combine like terms: 0 + -11.66666667 = -11.66666667 -5.944444444x + x2 = -11.66666667 The x term is -5.944444444x. Take half its coefficient (-2.972222222). Square it (8.834104937) and add it to both sides. Add '8.834104937' to each side of the equation. -5.944444444x + 8.834104937 + x2 = -11.66666667 + 8.834104937 Reorder the terms: 8.834104937 + -5.944444444x + x2 = -11.66666667 + 8.834104937 Combine like terms: -11.66666667 + 8.834104937 = -2.832561733 8.834104937 + -5.944444444x + x2 = -2.832561733 Factor a perfect square on the left side: (x + -2.972222222)(x + -2.972222222) = -2.832561733 Can't calculate square root of the right side. The solution to this equation could not be determined.
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