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Simplifying x4 + 6x2 + 1 = 0 Reorder the terms: 1 + 6x2 + x4 = 0 Solving 1 + 6x2 + x4 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + 6x2 + -1 + x4 = 0 + -1 Reorder the terms: 1 + -1 + 6x2 + x4 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 6x2 + x4 = 0 + -1 6x2 + x4 = 0 + -1 Combine like terms: 0 + -1 = -1 6x2 + x4 = -1 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 = -1 + 9 Reorder the terms: 9 + 6x2 + x4 = -1 + 9 Combine like terms: -1 + 9 = 8 9 + 6x2 + x4 = 8 Factor a perfect square on the left side: (x2 + 3)(x2 + 3) = 8 Calculate the square root of the right side: 2.828427125 Break this problem into two subproblems by setting (x2 + 3) equal to 2.828427125 and -2.828427125.Subproblem 1
x2 + 3 = 2.828427125 Simplifying x2 + 3 = 2.828427125 Reorder the terms: 3 + x2 = 2.828427125 Solving 3 + x2 = 2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x2 = 2.828427125 + -3 Combine like terms: 3 + -3 = 0 0 + x2 = 2.828427125 + -3 x2 = 2.828427125 + -3 Combine like terms: 2.828427125 + -3 = -0.171572875 x2 = -0.171572875 Simplifying x2 = -0.171572875 Reorder the terms: 0.171572875 + x2 = -0.171572875 + 0.171572875 Combine like terms: -0.171572875 + 0.171572875 = 0.000000000 0.171572875 + x2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined.Subproblem 2
x2 + 3 = -2.828427125 Simplifying x2 + 3 = -2.828427125 Reorder the terms: 3 + x2 = -2.828427125 Solving 3 + x2 = -2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x2 = -2.828427125 + -3 Combine like terms: 3 + -3 = 0 0 + x2 = -2.828427125 + -3 x2 = -2.828427125 + -3 Combine like terms: -2.828427125 + -3 = -5.828427125 x2 = -5.828427125 Simplifying x2 = -5.828427125 Reorder the terms: 5.828427125 + x2 = -5.828427125 + 5.828427125 Combine like terms: -5.828427125 + 5.828427125 = 0.000000000 5.828427125 + 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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