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Simplifying x2 + -2.2x + 2 = 0 Reorder the terms: 2 + -2.2x + x2 = 0 Solving 2 + -2.2x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + -2.2x + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + -2.2x + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -2.2x + x2 = 0 + -2 -2.2x + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 -2.2x + x2 = -2 The x term is -2.2x. Take half its coefficient (-1.1). Square it (1.21) and add it to both sides. Add '1.21' to each side of the equation. -2.2x + 1.21 + x2 = -2 + 1.21 Reorder the terms: 1.21 + -2.2x + x2 = -2 + 1.21 Combine like terms: -2 + 1.21 = -0.79 1.21 + -2.2x + x2 = -0.79 Factor a perfect square on the left side: (x + -1.1)(x + -1.1) = -0.79 Can't calculate square root of the right side. The solution to this equation could not be determined.
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