Question

x^2+kx+7.5k= 0 has no solution find satisfied value of k​

Answer 1

Answer :

k<0 and k<30

Explanation:

Compare x²+kx+7.5k =0 with

ax²+bx+c=0 , we get

a=1 , b=k, c = 7.5

Discreminant (D) <0

[ Given , no solution ]

b²-4ac<0

=> k²-4*k*7.5<0

=> k(k-30)<0

k <0 and k-30<0

=> k<0 and k <30

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