`If-4` is a root of the quadratic equation `x^2+p x-4=0` and the quadratic equation `x^2+p x+k=0` has equal roots, find the value of `kdot`

Explanation

Given,

`x^2+p x-4=0`

`=>(-4)6^2+p(-4)-4=0`

`=>16+p(-4)-4=0`

`=>-4p=-12`

`=>p=3`


Now ,

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