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Simplifying x4 + 2x2 + -2 = 0 Reorder the terms: -2 + 2x2 + x4 = 0 Solving -2 + 2x2 + x4 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + 2x2 + 2 + x4 = 0 + 2 Reorder the terms: -2 + 2 + 2x2 + x4 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 2x2 + x4 = 0 + 2 2x2 + x4 = 0 + 2 Combine like terms: 0 + 2 = 2 2x2 + x4 = 2 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 = 2 + 1 Reorder the terms: 1 + 2x2 + x4 = 2 + 1 Combine like terms: 2 + 1 = 3 1 + 2x2 + x4 = 3 Factor a perfect square on the left side: (x2 + 1)(x2 + 1) = 3 Calculate the square root of the right side: 1.732050808 Break this problem into two subproblems by setting (x2 + 1) equal to 1.732050808 and -1.732050808.Subproblem 1
x2 + 1 = 1.732050808 Simplifying x2 + 1 = 1.732050808 Reorder the terms: 1 + x2 = 1.732050808 Solving 1 + x2 = 1.732050808 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 = 1.732050808 + -1 Combine like terms: 1 + -1 = 0 0 + x2 = 1.732050808 + -1 x2 = 1.732050808 + -1 Combine like terms: 1.732050808 + -1 = 0.732050808 x2 = 0.732050808 Simplifying x2 = 0.732050808 Take the square root of each side: x = {-0.855599677, 0.855599677}Subproblem 2
x2 + 1 = -1.732050808 Simplifying x2 + 1 = -1.732050808 Reorder the terms: 1 + x2 = -1.732050808 Solving 1 + x2 = -1.732050808 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 = -1.732050808 + -1 Combine like terms: 1 + -1 = 0 0 + x2 = -1.732050808 + -1 x2 = -1.732050808 + -1 Combine like terms: -1.732050808 + -1 = -2.732050808 x2 = -2.732050808 Simplifying x2 = -2.732050808 Reorder the terms: 2.732050808 + x2 = -2.732050808 + 2.732050808 Combine like terms: -2.732050808 + 2.732050808 = 0.000000000 2.732050808 + 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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