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Simplifying 10x4 + 9x2 + 1 = 0 Reorder the terms: 1 + 9x2 + 10x4 = 0 Solving 1 + 9x2 + 10x4 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 10 the coefficient of the squared term: Divide each side by '10'. 0.1 + 0.9x2 + x4 = 0 Move the constant term to the right: Add '-0.1' to each side of the equation. 0.1 + 0.9x2 + -0.1 + x4 = 0 + -0.1 Reorder the terms: 0.1 + -0.1 + 0.9x2 + x4 = 0 + -0.1 Combine like terms: 0.1 + -0.1 = 0.0 0.0 + 0.9x2 + x4 = 0 + -0.1 0.9x2 + x4 = 0 + -0.1 Combine like terms: 0 + -0.1 = -0.1 0.9x2 + x4 = -0.1 The x term is 0.9x2. Take half its coefficient (0.45). Square it (0.2025) and add it to both sides. Add '0.2025' to each side of the equation. 0.9x2 + 0.2025 + x4 = -0.1 + 0.2025 Reorder the terms: 0.2025 + 0.9x2 + x4 = -0.1 + 0.2025 Combine like terms: -0.1 + 0.2025 = 0.1025 0.2025 + 0.9x2 + x4 = 0.1025 Factor a perfect square on the left side: (x2 + 0.45)(x2 + 0.45) = 0.1025 Calculate the square root of the right side: 0.320156212 Break this problem into two subproblems by setting (x2 + 0.45) equal to 0.320156212 and -0.320156212.Subproblem 1
x2 + 0.45 = 0.320156212 Simplifying x2 + 0.45 = 0.320156212 Reorder the terms: 0.45 + x2 = 0.320156212 Solving 0.45 + x2 = 0.320156212 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.45' to each side of the equation. 0.45 + -0.45 + x2 = 0.320156212 + -0.45 Combine like terms: 0.45 + -0.45 = 0.00 0.00 + x2 = 0.320156212 + -0.45 x2 = 0.320156212 + -0.45 Combine like terms: 0.320156212 + -0.45 = -0.129843788 x2 = -0.129843788 Simplifying x2 = -0.129843788 Reorder the terms: 0.129843788 + x2 = -0.129843788 + 0.129843788 Combine like terms: -0.129843788 + 0.129843788 = 0.000000000 0.129843788 + 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 + 0.45 = -0.320156212 Simplifying x2 + 0.45 = -0.320156212 Reorder the terms: 0.45 + x2 = -0.320156212 Solving 0.45 + x2 = -0.320156212 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.45' to each side of the equation. 0.45 + -0.45 + x2 = -0.320156212 + -0.45 Combine like terms: 0.45 + -0.45 = 0.00 0.00 + x2 = -0.320156212 + -0.45 x2 = -0.320156212 + -0.45 Combine like terms: -0.320156212 + -0.45 = -0.770156212 x2 = -0.770156212 Simplifying x2 = -0.770156212 Reorder the terms: 0.770156212 + x2 = -0.770156212 + 0.770156212 Combine like terms: -0.770156212 + 0.770156212 = 0.000000000 0.770156212 + 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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