Question

The values of k for which the quadratic equation kx2-5x+k=0 has equal roots:

(a) 5/2
(b) -5/2
(c) +- 5/2
(d) none of these

Answer 1

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Answer 2

Answer:

d= b^2 - 4ac

here

a=k

b=-5

and c=k

d= 25-4*k*k

=25-4k^2

4k^2=25

k^2=25/4

k=+/-5/2

Step-by-step explanation: