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Simplifying x4 + -4x2 + -2ax + -1 = 0 Reorder the terms: -1 + -2ax + -4x2 + x4 = 0 Solving -1 + -2ax + -4x2 + x4 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1' to each side of the equation. -1 + -2ax + -4x2 + 1 + x4 = 0 + 1 Reorder the terms: -1 + 1 + -2ax + -4x2 + x4 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2ax + -4x2 + x4 = 0 + 1 -2ax + -4x2 + x4 = 0 + 1 Combine like terms: 0 + 1 = 1 -2ax + -4x2 + x4 = 1 Add '4x2' to each side of the equation. -2ax + -4x2 + 4x2 + x4 = 1 + 4x2 Combine like terms: -4x2 + 4x2 = 0 -2ax + 0 + x4 = 1 + 4x2 -2ax + x4 = 1 + 4x2 Add '-1x4' to each side of the equation. -2ax + x4 + -1x4 = 1 + 4x2 + -1x4 Combine like terms: x4 + -1x4 = 0 -2ax + 0 = 1 + 4x2 + -1x4 -2ax = 1 + 4x2 + -1x4 Divide each side by '-2x'. a = -0.5x-1 + -2x + 0.5x3 Simplifying a = -0.5x-1 + -2x + 0.5x3
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