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Simplifying x2 + -0.2x + 3 = 0 Reorder the terms: 3 + -0.2x + x2 = 0 Solving 3 + -0.2x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-3' to each side of the equation. 3 + -0.2x + -3 + x2 = 0 + -3 Reorder the terms: 3 + -3 + -0.2x + x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -0.2x + x2 = 0 + -3 -0.2x + x2 = 0 + -3 Combine like terms: 0 + -3 = -3 -0.2x + x2 = -3 The x term is -0.2x. Take half its coefficient (-0.1). Square it (0.01) and add it to both sides. Add '0.01' to each side of the equation. -0.2x + 0.01 + x2 = -3 + 0.01 Reorder the terms: 0.01 + -0.2x + x2 = -3 + 0.01 Combine like terms: -3 + 0.01 = -2.99 0.01 + -0.2x + x2 = -2.99 Factor a perfect square on the left side: (x + -0.1)(x + -0.1) = -2.99 Can't calculate square root of the right side. The solution to this equation could not be determined.
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