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Simplifying x4 + -8x2 + 0.5 = 2.5 Reorder the terms: 0.5 + -8x2 + x4 = 2.5 Solving 0.5 + -8x2 + x4 = 2.5 Solving for variable 'x'. Reorder the terms: 0.5 + -2.5 + -8x2 + x4 = 2.5 + -2.5 Combine like terms: 0.5 + -2.5 = -2 -2 + -8x2 + x4 = 2.5 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 -2 + -8x2 + x4 = 0.0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + -8x2 + 2 + x4 = 0.0 + 2 Reorder the terms: -2 + 2 + -8x2 + x4 = 0.0 + 2 Combine like terms: -2 + 2 = 0 0 + -8x2 + x4 = 0.0 + 2 -8x2 + x4 = 0.0 + 2 Combine like terms: 0.0 + 2 = 2 -8x2 + x4 = 2 The x term is -8x2. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x2 + 16 + x4 = 2 + 16 Reorder the terms: 16 + -8x2 + x4 = 2 + 16 Combine like terms: 2 + 16 = 18 16 + -8x2 + x4 = 18 Factor a perfect square on the left side: (x2 + -4)(x2 + -4) = 18 Calculate the square root of the right side: 4.242640687 Break this problem into two subproblems by setting (x2 + -4) equal to 4.242640687 and -4.242640687.Subproblem 1
x2 + -4 = 4.242640687 Simplifying x2 + -4 = 4.242640687 Reorder the terms: -4 + x2 = 4.242640687 Solving -4 + x2 = 4.242640687 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x2 = 4.242640687 + 4 Combine like terms: -4 + 4 = 0 0 + x2 = 4.242640687 + 4 x2 = 4.242640687 + 4 Combine like terms: 4.242640687 + 4 = 8.242640687 x2 = 8.242640687 Simplifying x2 = 8.242640687 Take the square root of each side: x = {-2.870999945, 2.870999945}Subproblem 2
x2 + -4 = -4.242640687 Simplifying x2 + -4 = -4.242640687 Reorder the terms: -4 + x2 = -4.242640687 Solving -4 + x2 = -4.242640687 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x2 = -4.242640687 + 4 Combine like terms: -4 + 4 = 0 0 + x2 = -4.242640687 + 4 x2 = -4.242640687 + 4 Combine like terms: -4.242640687 + 4 = -0.242640687 x2 = -0.242640687 Simplifying x2 = -0.242640687 Reorder the terms: 0.242640687 + x2 = -0.242640687 + 0.242640687 Combine like terms: -0.242640687 + 0.242640687 = 0.000000000 0.242640687 + 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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