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Simplifying X4 + 1 = x4 + 2x2 + 1 + -2x2 Reorder the terms: 1 + X4 = x4 + 2x2 + 1 + -2x2 Reorder the terms: 1 + X4 = 1 + 2x2 + -2x2 + x4 Combine like terms: 2x2 + -2x2 = 0 1 + X4 = 1 + 0 + x4 1 + X4 = 1 + x4 Add '-1' to each side of the equation. 1 + -1 + X4 = 1 + -1 + x4 Combine like terms: 1 + -1 = 0 0 + X4 = 1 + -1 + x4 X4 = 1 + -1 + x4 Combine like terms: 1 + -1 = 0 X4 = 0 + x4 X4 = x4 Solving X4 = x4 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Simplifying X4 = x4 Combine like terms: x4 + -1x4 = 0 X4 + -1x4 = 0 Factor a difference between two squares. (X2 + x2)(X2 + -1x2) = 0 Factor a difference between two squares. (X2 + x2)((X + x)(X + -1x)) = 0Subproblem 1
Set the factor '(X2 + x2)' equal to zero and attempt to solve: Simplifying X2 + x2 = 0 Solving X2 + x2 = 0 Move all terms containing X to the left, all other terms to the right. Add '-1x2' to each side of the equation. X2 + x2 + -1x2 = 0 + -1x2 Combine like terms: x2 + -1x2 = 0 X2 + 0 = 0 + -1x2 X2 = 0 + -1x2 Remove the zero: X2 = -1x2 Simplifying X2 = -1x2 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(X + x)' equal to zero and attempt to solve: Simplifying X + x = 0 Solving X + x = 0 Move all terms containing X to the left, all other terms to the right. Add '-1x' to each side of the equation. X + x + -1x = 0 + -1x Combine like terms: x + -1x = 0 X + 0 = 0 + -1x X = 0 + -1x Remove the zero: X = -1x Simplifying X = -1xSubproblem 3
Set the factor '(X + -1x)' equal to zero and attempt to solve: Simplifying X + -1x = 0 Solving X + -1x = 0 Move all terms containing X to the left, all other terms to the right. Add 'x' to each side of the equation. X + -1x + x = 0 + x Combine like terms: -1x + x = 0 X + 0 = 0 + x X = 0 + x Remove the zero: X = x Simplifying X = xSolution
X = {-1x, x}
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