Form a quadratic equation in the form ax^{2}+bx+c=0 whose roots are b and twice the negative reciprocal of b.

x=b x=−^{1}/_{b } (x−b)(x + ^{1}/_{b}) =0x^{2} + ^{x}/_{b} − bx − 1=0 x^{2} + (^{1}/_{b} − b)x −1 =0

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