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Simplifying x2 + -60x + 1200 = 0 Reorder the terms: 1200 + -60x + x2 = 0 Solving 1200 + -60x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-1200' to each side of the equation. 1200 + -60x + -1200 + x2 = 0 + -1200 Reorder the terms: 1200 + -1200 + -60x + x2 = 0 + -1200 Combine like terms: 1200 + -1200 = 0 0 + -60x + x2 = 0 + -1200 -60x + x2 = 0 + -1200 Combine like terms: 0 + -1200 = -1200 -60x + x2 = -1200 The x term is -60x. Take half its coefficient (-30). Square it (900) and add it to both sides. Add '900' to each side of the equation. -60x + 900 + x2 = -1200 + 900 Reorder the terms: 900 + -60x + x2 = -1200 + 900 Combine like terms: -1200 + 900 = -300 900 + -60x + x2 = -300 Factor a perfect square on the left side: (x + -30)(x + -30) = -300 Can't calculate square root of the right side. The solution to this equation could not be determined.
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