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Simplifying x2 + -16x + 256 = 0 Reorder the terms: 256 + -16x + x2 = 0 Solving 256 + -16x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-256' to each side of the equation. 256 + -16x + -256 + x2 = 0 + -256 Reorder the terms: 256 + -256 + -16x + x2 = 0 + -256 Combine like terms: 256 + -256 = 0 0 + -16x + x2 = 0 + -256 -16x + x2 = 0 + -256 Combine like terms: 0 + -256 = -256 -16x + x2 = -256 The x term is -16x. Take half its coefficient (-8). Square it (64) and add it to both sides. Add '64' to each side of the equation. -16x + 64 + x2 = -256 + 64 Reorder the terms: 64 + -16x + x2 = -256 + 64 Combine like terms: -256 + 64 = -192 64 + -16x + x2 = -192 Factor a perfect square on the left side: (x + -8)(x + -8) = -192 Can't calculate square root of the right side. The solution to this equation could not be determined.
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