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Simplifying 3x4 + 6x2 + 4 = 0 Reorder the terms: 4 + 6x2 + 3x4 = 0 Solving 4 + 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'. 1.333333333 + 2x2 + x4 = 0 Move the constant term to the right: Add '-1.333333333' to each side of the equation. 1.333333333 + 2x2 + -1.333333333 + x4 = 0 + -1.333333333 Reorder the terms: 1.333333333 + -1.333333333 + 2x2 + x4 = 0 + -1.333333333 Combine like terms: 1.333333333 + -1.333333333 = 0.000000000 0.000000000 + 2x2 + x4 = 0 + -1.333333333 2x2 + x4 = 0 + -1.333333333 Combine like terms: 0 + -1.333333333 = -1.333333333 2x2 + x4 = -1.333333333 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 = -1.333333333 + 1 Reorder the terms: 1 + 2x2 + x4 = -1.333333333 + 1 Combine like terms: -1.333333333 + 1 = -0.333333333 1 + 2x2 + x4 = -0.333333333 Factor a perfect square on the left side: (x2 + 1)(x2 + 1) = -0.333333333 Can't calculate square root of the right side. The solution to this equation could not be determined.
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