Question

Find the value of k for which one root of the quadratic equation kx²-14x+8=0 is 2

Answer 1

Answer: The value of k would be 5.

Step-by-step explanation:

Since 2 is a root of the given quadratic equation kx^2-14x+8=0, therefore it satisfies equation.

So,

Plugging x=2, we get:

k*2^2-14*2+8=0

k*4-28+8=0

4*k-20=0

k=20/4=5

k=5