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Simplifying Z2 + 1.5588Z + 0.81 = 0 Reorder the terms: 0.81 + 1.5588Z + Z2 = 0 Solving 0.81 + 1.5588Z + Z2 = 0 Solving for variable 'Z'. Begin completing the square. Move the constant term to the right: Add '-0.81' to each side of the equation. 0.81 + 1.5588Z + -0.81 + Z2 = 0 + -0.81 Reorder the terms: 0.81 + -0.81 + 1.5588Z + Z2 = 0 + -0.81 Combine like terms: 0.81 + -0.81 = 0.00 0.00 + 1.5588Z + Z2 = 0 + -0.81 1.5588Z + Z2 = 0 + -0.81 Combine like terms: 0 + -0.81 = -0.81 1.5588Z + Z2 = -0.81 The Z term is 1.5588Z. Take half its coefficient (0.7794). Square it (0.60746436) and add it to both sides. Add '0.60746436' to each side of the equation. 1.5588Z + 0.60746436 + Z2 = -0.81 + 0.60746436 Reorder the terms: 0.60746436 + 1.5588Z + Z2 = -0.81 + 0.60746436 Combine like terms: -0.81 + 0.60746436 = -0.20253564 0.60746436 + 1.5588Z + Z2 = -0.20253564 Factor a perfect square on the left side: (Z + 0.7794)(Z + 0.7794) = -0.20253564 Can't calculate square root of the right side. The solution to this equation could not be determined.
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