9. PYQ - Roots of the equation

Find the least value of \(p\) for which the quadratic equation \(x^2 - 2(p+4)x + p^2 = 0\) has real roots. Hence, determine the roots of the equation so obtained. 
 
p=−i,x=i,i
 
[Note: Enter minus in the numerator wherever needed]
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