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Simplifying p2 + -9p + 81 = 0 Reorder the terms: 81 + -9p + p2 = 0 Solving 81 + -9p + p2 = 0 Solving for variable 'p'. Begin completing the square. Move the constant term to the right: Add '-81' to each side of the equation. 81 + -9p + -81 + p2 = 0 + -81 Reorder the terms: 81 + -81 + -9p + p2 = 0 + -81 Combine like terms: 81 + -81 = 0 0 + -9p + p2 = 0 + -81 -9p + p2 = 0 + -81 Combine like terms: 0 + -81 = -81 -9p + p2 = -81 The p term is -9p. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9p + 20.25 + p2 = -81 + 20.25 Reorder the terms: 20.25 + -9p + p2 = -81 + 20.25 Combine like terms: -81 + 20.25 = -60.75 20.25 + -9p + p2 = -60.75 Factor a perfect square on the left side: (p + -4.5)(p + -4.5) = -60.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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