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Simplifying x2 + -0.4x + 0.0425 = 0 Reorder the terms: 0.0425 + -0.4x + x2 = 0 Solving 0.0425 + -0.4x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-0.0425' to each side of the equation. 0.0425 + -0.4x + -0.0425 + x2 = 0 + -0.0425 Reorder the terms: 0.0425 + -0.0425 + -0.4x + x2 = 0 + -0.0425 Combine like terms: 0.0425 + -0.0425 = 0.0000 0.0000 + -0.4x + x2 = 0 + -0.0425 -0.4x + x2 = 0 + -0.0425 Combine like terms: 0 + -0.0425 = -0.0425 -0.4x + x2 = -0.0425 The x term is -0.4x. Take half its coefficient (-0.2). Square it (0.04) and add it to both sides. Add '0.04' to each side of the equation. -0.4x + 0.04 + x2 = -0.0425 + 0.04 Reorder the terms: 0.04 + -0.4x + x2 = -0.0425 + 0.04 Combine like terms: -0.0425 + 0.04 = -0.0025 0.04 + -0.4x + x2 = -0.0025 Factor a perfect square on the left side: (x + -0.2)(x + -0.2) = -0.0025 Can't calculate square root of the right side. The solution to this equation could not be determined.
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