Question

One of the root of the quadratic equation X2-7x+k=0is3then the value of k is

Answer 1

CORRECT QUESTION:-

One of the root of quadratric equation x²-7x+k is 3 then find the value of k

EXPLANATION:-

Let p(x)=x²-7x+k

So p(3)=0  [SINCE 3 IS THE ROOT OF THE EQUATION]

P(3)=(3)²-7(3)+k

p(3)9-21+k

p(3)=-12+k

p(3)=0

0=-12+k

12=k

So the value of is 12

Answer 2

Answer:

above one is correct

hope it helps