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Simplifying n2 + -30n + 255 = 0 Reorder the terms: 255 + -30n + n2 = 0 Solving 255 + -30n + n2 = 0 Solving for variable 'n'. Begin completing the square. Move the constant term to the right: Add '-255' to each side of the equation. 255 + -30n + -255 + n2 = 0 + -255 Reorder the terms: 255 + -255 + -30n + n2 = 0 + -255 Combine like terms: 255 + -255 = 0 0 + -30n + n2 = 0 + -255 -30n + n2 = 0 + -255 Combine like terms: 0 + -255 = -255 -30n + n2 = -255 The n term is -30n. Take half its coefficient (-15). Square it (225) and add it to both sides. Add '225' to each side of the equation. -30n + 225 + n2 = -255 + 225 Reorder the terms: 225 + -30n + n2 = -255 + 225 Combine like terms: -255 + 225 = -30 225 + -30n + n2 = -30 Factor a perfect square on the left side: (n + -15)(n + -15) = -30 Can't calculate square root of the right side. The solution to this equation could not be determined.
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