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Simplifying x2 + -16x + 64 = -324 Reorder the terms: 64 + -16x + x2 = -324 Solving 64 + -16x + x2 = -324 Solving for variable 'x'. Reorder the terms: 64 + 324 + -16x + x2 = -324 + 324 Combine like terms: 64 + 324 = 388 388 + -16x + x2 = -324 + 324 Combine like terms: -324 + 324 = 0 388 + -16x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-388' to each side of the equation. 388 + -16x + -388 + x2 = 0 + -388 Reorder the terms: 388 + -388 + -16x + x2 = 0 + -388 Combine like terms: 388 + -388 = 0 0 + -16x + x2 = 0 + -388 -16x + x2 = 0 + -388 Combine like terms: 0 + -388 = -388 -16x + x2 = -388 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 = -388 + 64 Reorder the terms: 64 + -16x + x2 = -388 + 64 Combine like terms: -388 + 64 = -324 64 + -16x + x2 = -324 Factor a perfect square on the left side: (x + -8)(x + -8) = -324 Can't calculate square root of the right side. The solution to this equation could not be determined.
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