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Simplifying x4 + -2x2 + 160 = 0 Reorder the terms: 160 + -2x2 + x4 = 0 Solving 160 + -2x2 + x4 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-160' to each side of the equation. 160 + -2x2 + -160 + x4 = 0 + -160 Reorder the terms: 160 + -160 + -2x2 + x4 = 0 + -160 Combine like terms: 160 + -160 = 0 0 + -2x2 + x4 = 0 + -160 -2x2 + x4 = 0 + -160 Combine like terms: 0 + -160 = -160 -2x2 + x4 = -160 The x term is -2x2. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x2 + 1 + x4 = -160 + 1 Reorder the terms: 1 + -2x2 + x4 = -160 + 1 Combine like terms: -160 + 1 = -159 1 + -2x2 + x4 = -159 Factor a perfect square on the left side: (x2 + -1)(x2 + -1) = -159 Can't calculate square root of the right side. The solution to this equation could not be determined.
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