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Simplifying x2 + bx + c = 0 Reorder the terms: bx + c + x2 = 0 Solving bx + c + x2 = 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. bx + c + -1c + x2 = 0 + -1c Combine like terms: c + -1c = 0 bx + 0 + x2 = 0 + -1c bx + x2 = 0 + -1c Remove the zero: bx + x2 = -1c Add '-1x2' to each side of the equation. bx + x2 + -1x2 = -1c + -1x2 Combine like terms: x2 + -1x2 = 0 bx + 0 = -1c + -1x2 bx = -1c + -1x2 Divide each side by 'x'. b = -1cx-1 + -1x Simplifying b = -1cx-1 + -1x
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