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If alpha,beta are the roots of a x^2+b x...

If `alpha,beta` are the roots of `a x^2+b x+c=0,(a!=0)` and `alpha+delta,beta+delta` are the roots of `A x^2+B x+C=0,(A!=0)` for some constant `delta` then prove that `(b^2-4a c)/(a^2)=(B^2-4A C)/(A^2)`

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