Question

the positive integral values of K for which the equation has both the roots real , distinct and negative is
answer is 3
i need the solution ​

Answer 1

Answer:

a=(k-2)

b=8

c=(k+4)

use quadratic formula

b²-4ac

8²-4(k-2)(k+4)

64-4(k²)(2+4)

64-4(k²)(2)

k²= (8)-64

k²=56

k=(56)