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Simplifying x(x + 5) = -9 Reorder the terms: x(5 + x) = -9 (5 * x + x * x) = -9 (5x + x2) = -9 Solving 5x + x2 = -9 Solving for variable 'x'. Reorder the terms: 9 + 5x + x2 = -9 + 9 Combine like terms: -9 + 9 = 0 9 + 5x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-9' to each side of the equation. 9 + 5x + -9 + x2 = 0 + -9 Reorder the terms: 9 + -9 + 5x + x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 5x + x2 = 0 + -9 5x + x2 = 0 + -9 Combine like terms: 0 + -9 = -9 5x + x2 = -9 The x term is 5x. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5x + 6.25 + x2 = -9 + 6.25 Reorder the terms: 6.25 + 5x + x2 = -9 + 6.25 Combine like terms: -9 + 6.25 = -2.75 6.25 + 5x + x2 = -2.75 Factor a perfect square on the left side: (x + 2.5)(x + 2.5) = -2.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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