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Simplifying 22x2 + -21x + 55 = 0 Reorder the terms: 55 + -21x + 22x2 = 0 Solving 55 + -21x + 22x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 22 the coefficient of the squared term: Divide each side by '22'. 2.5 + -0.9545454545x + x2 = 0 Move the constant term to the right: Add '-2.5' to each side of the equation. 2.5 + -0.9545454545x + -2.5 + x2 = 0 + -2.5 Reorder the terms: 2.5 + -2.5 + -0.9545454545x + x2 = 0 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + -0.9545454545x + x2 = 0 + -2.5 -0.9545454545x + x2 = 0 + -2.5 Combine like terms: 0 + -2.5 = -2.5 -0.9545454545x + x2 = -2.5 The x term is -0.9545454545x. Take half its coefficient (-0.4772727273). Square it (0.2277892562) and add it to both sides. Add '0.2277892562' to each side of the equation. -0.9545454545x + 0.2277892562 + x2 = -2.5 + 0.2277892562 Reorder the terms: 0.2277892562 + -0.9545454545x + x2 = -2.5 + 0.2277892562 Combine like terms: -2.5 + 0.2277892562 = -2.2722107438 0.2277892562 + -0.9545454545x + x2 = -2.2722107438 Factor a perfect square on the left side: (x + -0.4772727273)(x + -0.4772727273) = -2.2722107438 Can't calculate square root of the right side. The solution to this equation could not be determined.
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