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Simplifying x4 + -6x2 + 64 = 0 Reorder the terms: 64 + -6x2 + x4 = 0 Solving 64 + -6x2 + x4 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-64' to each side of the equation. 64 + -6x2 + -64 + x4 = 0 + -64 Reorder the terms: 64 + -64 + -6x2 + x4 = 0 + -64 Combine like terms: 64 + -64 = 0 0 + -6x2 + x4 = 0 + -64 -6x2 + x4 = 0 + -64 Combine like terms: 0 + -64 = -64 -6x2 + x4 = -64 The x term is -6x2. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6x2 + 9 + x4 = -64 + 9 Reorder the terms: 9 + -6x2 + x4 = -64 + 9 Combine like terms: -64 + 9 = -55 9 + -6x2 + x4 = -55 Factor a perfect square on the left side: (x2 + -3)(x2 + -3) = -55 Can't calculate square root of the right side. The solution to this equation could not be determined.
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