Q. 2 F5.0( 1 Vote )

Find that value o

Answer :

When we compare the above quadratic equation with the generalized one we get,

ax2 + bx + c = 0


a = k


b = -5


c = k


Since the quadratic equations have real and equal roots,


b2 – 4ac = 0 for real and equal roots


(-5) 2 – (4 × k × k) = 0


25 - 4k2 = 0


4k2 = 25


k2 = 25/4


k= ± 5/2


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