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If the roots of the equation a x^2+b x+c...

If the roots of the equation `a x^2+b x+c=0` are of the form `(k+1)//ka n d(k+2)//(k+1),t h e n(a+b+c)^2` is equal to `2b^2-a c` b. `a 62` c. `b^2-4a c` d. `b^2-2a c`

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