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Simplifying 2x4 + -1x2 + 160 = 0 Reorder the terms: 160 + -1x2 + 2x4 = 0 Solving 160 + -1x2 + 2x4 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 80 + -0.5x2 + x4 = 0 Move the constant term to the right: Add '-80' to each side of the equation. 80 + -0.5x2 + -80 + x4 = 0 + -80 Reorder the terms: 80 + -80 + -0.5x2 + x4 = 0 + -80 Combine like terms: 80 + -80 = 0 0 + -0.5x2 + x4 = 0 + -80 -0.5x2 + x4 = 0 + -80 Combine like terms: 0 + -80 = -80 -0.5x2 + x4 = -80 The x term is -0.5x2. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5x2 + 0.0625 + x4 = -80 + 0.0625 Reorder the terms: 0.0625 + -0.5x2 + x4 = -80 + 0.0625 Combine like terms: -80 + 0.0625 = -79.9375 0.0625 + -0.5x2 + x4 = -79.9375 Factor a perfect square on the left side: (x2 + -0.25)(x2 + -0.25) = -79.9375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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