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Simplifying x2 + 2x + 47 = 0 Reorder the terms: 47 + 2x + x2 = 0 Solving 47 + 2x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-47' to each side of the equation. 47 + 2x + -47 + x2 = 0 + -47 Reorder the terms: 47 + -47 + 2x + x2 = 0 + -47 Combine like terms: 47 + -47 = 0 0 + 2x + x2 = 0 + -47 2x + x2 = 0 + -47 Combine like terms: 0 + -47 = -47 2x + x2 = -47 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 = -47 + 1 Reorder the terms: 1 + 2x + x2 = -47 + 1 Combine like terms: -47 + 1 = -46 1 + 2x + x2 = -46 Factor a perfect square on the left side: (x + 1)(x + 1) = -46 Can't calculate square root of the right side. The solution to this equation could not be determined.
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