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Simplifying x2 + 4.47x = -5 Reorder the terms: 4.47x + x2 = -5 Solving 4.47x + x2 = -5 Solving for variable 'x'. Reorder the terms: 5 + 4.47x + x2 = -5 + 5 Combine like terms: -5 + 5 = 0 5 + 4.47x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-5' to each side of the equation. 5 + 4.47x + -5 + x2 = 0 + -5 Reorder the terms: 5 + -5 + 4.47x + x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 4.47x + x2 = 0 + -5 4.47x + x2 = 0 + -5 Combine like terms: 0 + -5 = -5 4.47x + x2 = -5 The x term is 4.47x. Take half its coefficient (2.235). Square it (4.995225) and add it to both sides. Add '4.995225' to each side of the equation. 4.47x + 4.995225 + x2 = -5 + 4.995225 Reorder the terms: 4.995225 + 4.47x + x2 = -5 + 4.995225 Combine like terms: -5 + 4.995225 = -0.004775 4.995225 + 4.47x + x2 = -0.004775 Factor a perfect square on the left side: (x + 2.235)(x + 2.235) = -0.004775 Can't calculate square root of the right side. The solution to this equation could not be determined.
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