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Simplifying x2 + -2x = -30 Reorder the terms: -2x + x2 = -30 Solving -2x + x2 = -30 Solving for variable 'x'. Reorder the terms: 30 + -2x + x2 = -30 + 30 Combine like terms: -30 + 30 = 0 30 + -2x + x2 = 0 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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