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Simplifying x2 + -1.85x + 18 = 0 Reorder the terms: 18 + -1.85x + x2 = 0 Solving 18 + -1.85x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-18' to each side of the equation. 18 + -1.85x + -18 + x2 = 0 + -18 Reorder the terms: 18 + -18 + -1.85x + x2 = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -1.85x + x2 = 0 + -18 -1.85x + x2 = 0 + -18 Combine like terms: 0 + -18 = -18 -1.85x + x2 = -18 The x term is -1.85x. Take half its coefficient (-0.925). Square it (0.855625) and add it to both sides. Add '0.855625' to each side of the equation. -1.85x + 0.855625 + x2 = -18 + 0.855625 Reorder the terms: 0.855625 + -1.85x + x2 = -18 + 0.855625 Combine like terms: -18 + 0.855625 = -17.144375 0.855625 + -1.85x + x2 = -17.144375 Factor a perfect square on the left side: (x + -0.925)(x + -0.925) = -17.144375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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