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Simplifying x6 + -7x3 + -5 = 0 Reorder the terms: -5 + -7x3 + x6 = 0 Solving -5 + -7x3 + x6 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '5' to each side of the equation. -5 + -7x3 + 5 + x6 = 0 + 5 Reorder the terms: -5 + 5 + -7x3 + x6 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -7x3 + x6 = 0 + 5 -7x3 + x6 = 0 + 5 Combine like terms: 0 + 5 = 5 -7x3 + x6 = 5 The x term is -7x3. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7x3 + 12.25 + x6 = 5 + 12.25 Reorder the terms: 12.25 + -7x3 + x6 = 5 + 12.25 Combine like terms: 5 + 12.25 = 17.25 12.25 + -7x3 + x6 = 17.25 Factor a perfect square on the left side: (x3 + -3.5)(x3 + -3.5) = 17.25 Calculate the square root of the right side: 4.153311931 Break this problem into two subproblems by setting (x3 + -3.5) equal to 4.153311931 and -4.153311931.Subproblem 1
x3 + -3.5 = 4.153311931 Simplifying x3 + -3.5 = 4.153311931 Reorder the terms: -3.5 + x3 = 4.153311931 Solving -3.5 + x3 = 4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x3 = 4.153311931 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x3 = 4.153311931 + 3.5 x3 = 4.153311931 + 3.5 Combine like terms: 4.153311931 + 3.5 = 7.653311931 x3 = 7.653311931 Simplifying x3 = 7.653311931 Reorder the terms: -7.653311931 + x3 = 7.653311931 + -7.653311931 Combine like terms: 7.653311931 + -7.653311931 = 0.000000000 -7.653311931 + x3 = 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
x3 + -3.5 = -4.153311931 Simplifying x3 + -3.5 = -4.153311931 Reorder the terms: -3.5 + x3 = -4.153311931 Solving -3.5 + x3 = -4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x3 = -4.153311931 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x3 = -4.153311931 + 3.5 x3 = -4.153311931 + 3.5 Combine like terms: -4.153311931 + 3.5 = -0.653311931 x3 = -0.653311931 Simplifying x3 = -0.653311931 Reorder the terms: 0.653311931 + x3 = -0.653311931 + 0.653311931 Combine like terms: -0.653311931 + 0.653311931 = 0.000000000 0.653311931 + x3 = 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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