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Simplifying x4 + b * x2 + c = 0 Multiply b * x2 x4 + bx2 + c = 0 Reorder the terms: bx2 + c + x4 = 0 Solving bx2 + c + x4 = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1c' to each side of the equation. bx2 + c + -1c + x4 = 0 + -1c Combine like terms: c + -1c = 0 bx2 + 0 + x4 = 0 + -1c bx2 + x4 = 0 + -1c Remove the zero: bx2 + x4 = -1c Add '-1x4' to each side of the equation. bx2 + x4 + -1x4 = -1c + -1x4 Combine like terms: x4 + -1x4 = 0 bx2 + 0 = -1c + -1x4 bx2 = -1c + -1x4 Divide each side by 'x2'. b = -1cx-2 + -1x2 Simplifying b = -1cx-2 + -1x2
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