Question

find the value of k for which one root of the quadratic equation K square - 14
$kx{2} - 14x - 8 - 0 \: is2$
x - 8 - 0 is 2

Answer 1

Answer:

The value of k is 9

Step-by-step explanation:

It is given that, kx²-14x-8=0 . one of the root of this equation is 2.      now, putting the value of x in given equation,we get :  k(2)²-14(2) -8=0       ∴4k-28-8=0   ∴4k-36=0   ∴4k=36   ∴k=36/4     ∴ k=9