Question

If one root of the
quadratic equation

$x { }^{2} - 7x + k = 0$
is 2 then find value of k
.
​

Answer 1

Answer:

Since, 4 is root of x

2

−7x+k=0

⇒4

2

−7×4+k=0

⇒16−28+k=0

⇒k=12