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Simplifying x2 + 2x + 30 = 0 Reorder the terms: 30 + 2x + x2 = 0 Solving 30 + 2x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-30' to each side of the equation. 30 + 2x + -30 + x2 = 0 + -30 Reorder the terms: 30 + -30 + 2x + x2 = 0 + -30 Combine like terms: 30 + -30 = 0 0 + 2x + x2 = 0 + -30 2x + x2 = 0 + -30 Combine like terms: 0 + -30 = -30 2x + x2 = -30 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 = -30 + 1 Reorder the terms: 1 + 2x + x2 = -30 + 1 Combine like terms: -30 + 1 = -29 1 + 2x + x2 = -29 Factor a perfect square on the left side: (x + 1)(x + 1) = -29 Can't calculate square root of the right side. The solution to this equation could not be determined.
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