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Simplifying n2 + -8n + 64 = 0 Reorder the terms: 64 + -8n + n2 = 0 Solving 64 + -8n + n2 = 0 Solving for variable 'n'. Begin completing the square. Move the constant term to the right: Add '-64' to each side of the equation. 64 + -8n + -64 + n2 = 0 + -64 Reorder the terms: 64 + -64 + -8n + n2 = 0 + -64 Combine like terms: 64 + -64 = 0 0 + -8n + n2 = 0 + -64 -8n + n2 = 0 + -64 Combine like terms: 0 + -64 = -64 -8n + n2 = -64 The n term is -8n. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8n + 16 + n2 = -64 + 16 Reorder the terms: 16 + -8n + n2 = -64 + 16 Combine like terms: -64 + 16 = -48 16 + -8n + n2 = -48 Factor a perfect square on the left side: (n + -4)(n + -4) = -48 Can't calculate square root of the right side. The solution to this equation could not be determined.
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