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Simplifying 3x4 + -6x2 + -7 = 0 Reorder the terms: -7 + -6x2 + 3x4 = 0 Solving -7 + -6x2 + 3x4 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -2.333333333 + -2x2 + x4 = 0 Move the constant term to the right: Add '2.333333333' to each side of the equation. -2.333333333 + -2x2 + 2.333333333 + x4 = 0 + 2.333333333 Reorder the terms: -2.333333333 + 2.333333333 + -2x2 + x4 = 0 + 2.333333333 Combine like terms: -2.333333333 + 2.333333333 = 0.000000000 0.000000000 + -2x2 + x4 = 0 + 2.333333333 -2x2 + x4 = 0 + 2.333333333 Combine like terms: 0 + 2.333333333 = 2.333333333 -2x2 + x4 = 2.333333333 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 = 2.333333333 + 1 Reorder the terms: 1 + -2x2 + x4 = 2.333333333 + 1 Combine like terms: 2.333333333 + 1 = 3.333333333 1 + -2x2 + x4 = 3.333333333 Factor a perfect square on the left side: (x2 + -1)(x2 + -1) = 3.333333333 Calculate the square root of the right side: 1.825741858 Break this problem into two subproblems by setting (x2 + -1) equal to 1.825741858 and -1.825741858.Subproblem 1
x2 + -1 = 1.825741858 Simplifying x2 + -1 = 1.825741858 Reorder the terms: -1 + x2 = 1.825741858 Solving -1 + x2 = 1.825741858 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 = 1.825741858 + 1 Combine like terms: -1 + 1 = 0 0 + x2 = 1.825741858 + 1 x2 = 1.825741858 + 1 Combine like terms: 1.825741858 + 1 = 2.825741858 x2 = 2.825741858 Simplifying x2 = 2.825741858 Take the square root of each side: x = {-1.680994306, 1.680994306}Subproblem 2
x2 + -1 = -1.825741858 Simplifying x2 + -1 = -1.825741858 Reorder the terms: -1 + x2 = -1.825741858 Solving -1 + x2 = -1.825741858 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 = -1.825741858 + 1 Combine like terms: -1 + 1 = 0 0 + x2 = -1.825741858 + 1 x2 = -1.825741858 + 1 Combine like terms: -1.825741858 + 1 = -0.825741858 x2 = -0.825741858 Simplifying x2 = -0.825741858 Reorder the terms: 0.825741858 + x2 = -0.825741858 + 0.825741858 Combine like terms: -0.825741858 + 0.825741858 = 0.000000000 0.825741858 + 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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