The integral values of x for which x^(2)...

The integral values of x for which `x^(2)+7x+13` is perfect square are `alpha and beta` then

`alpha and beta` are -ve integer

`alpha^(2)+beta^(2)` is perfect square of an iteger

atleast one of the value `alpha or beta` is negative

atleast one of the value `alpha or beta` is prime

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