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Simplifying x2 + -30x + 261 = 0 Reorder the terms: 261 + -30x + x2 = 0 Solving 261 + -30x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-261' to each side of the equation. 261 + -30x + -261 + x2 = 0 + -261 Reorder the terms: 261 + -261 + -30x + x2 = 0 + -261 Combine like terms: 261 + -261 = 0 0 + -30x + x2 = 0 + -261 -30x + x2 = 0 + -261 Combine like terms: 0 + -261 = -261 -30x + x2 = -261 The x term is -30x. Take half its coefficient (-15). Square it (225) and add it to both sides. Add '225' to each side of the equation. -30x + 225 + x2 = -261 + 225 Reorder the terms: 225 + -30x + x2 = -261 + 225 Combine like terms: -261 + 225 = -36 225 + -30x + x2 = -36 Factor a perfect square on the left side: (x + -15)(x + -15) = -36 Can't calculate square root of the right side. The solution to this equation could not be determined.
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