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Simplifying 5x2 + 10x + 46 = 0 Reorder the terms: 46 + 10x + 5x2 = 0 Solving 46 + 10x + 5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 9.2 + 2x + x2 = 0 Move the constant term to the right: Add '-9.2' to each side of the equation. 9.2 + 2x + -9.2 + x2 = 0 + -9.2 Reorder the terms: 9.2 + -9.2 + 2x + x2 = 0 + -9.2 Combine like terms: 9.2 + -9.2 = 0.0 0.0 + 2x + x2 = 0 + -9.2 2x + x2 = 0 + -9.2 Combine like terms: 0 + -9.2 = -9.2 2x + x2 = -9.2 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = -9.2 + 1 Reorder the terms: 1 + 2x + x2 = -9.2 + 1 Combine like terms: -9.2 + 1 = -8.2 1 + 2x + x2 = -8.2 Factor a perfect square on the left side: (x + 1)(x + 1) = -8.2 Can't calculate square root of the right side. The solution to this equation could not be determined.
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