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Simplifying X4 + -2X2 = 1 Reorder the terms: -2X2 + X4 = 1 Solving -2X2 + X4 = 1 Solving for variable 'X'. Reorder the terms: -1 + -2X2 + X4 = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + -2X2 + X4 = 0 Begin completing the square. Move the constant term to the right: Add '1' to each side of the equation. -1 + -2X2 + 1 + X4 = 0 + 1 Reorder the terms: -1 + 1 + -2X2 + X4 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2X2 + X4 = 0 + 1 -2X2 + X4 = 0 + 1 Combine like terms: 0 + 1 = 1 -2X2 + X4 = 1 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 = 1 + 1 Reorder the terms: 1 + -2X2 + X4 = 1 + 1 Combine like terms: 1 + 1 = 2 1 + -2X2 + X4 = 2 Factor a perfect square on the left side: (X2 + -1)(X2 + -1) = 2 Calculate the square root of the right side: 1.414213562 Break this problem into two subproblems by setting (X2 + -1) equal to 1.414213562 and -1.414213562.Subproblem 1
X2 + -1 = 1.414213562 Simplifying X2 + -1 = 1.414213562 Reorder the terms: -1 + X2 = 1.414213562 Solving -1 + X2 = 1.414213562 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + X2 = 1.414213562 + 1 Combine like terms: -1 + 1 = 0 0 + X2 = 1.414213562 + 1 X2 = 1.414213562 + 1 Combine like terms: 1.414213562 + 1 = 2.414213562 X2 = 2.414213562 Simplifying X2 = 2.414213562 Take the square root of each side: X = {-1.553773974, 1.553773974}Subproblem 2
X2 + -1 = -1.414213562 Simplifying X2 + -1 = -1.414213562 Reorder the terms: -1 + X2 = -1.414213562 Solving -1 + X2 = -1.414213562 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + X2 = -1.414213562 + 1 Combine like terms: -1 + 1 = 0 0 + X2 = -1.414213562 + 1 X2 = -1.414213562 + 1 Combine like terms: -1.414213562 + 1 = -0.414213562 X2 = -0.414213562 Simplifying X2 = -0.414213562 Reorder the terms: 0.414213562 + X2 = -0.414213562 + 0.414213562 Combine like terms: -0.414213562 + 0.414213562 = 0.000000000 0.414213562 + X2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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