Question

Find the value of k if X=4 is the root of the equation x^2-7x+k=0​

Answer 1

x²-7x+k=0

given root of eqn =4,

let x=4, in the eqn

4²-7×4+k=0

k=16-28=-12

Answer 2

Answer:

Step-by-step explanation:

Since, k=4

X²-7x+k=0

4²-7*4+k=0

16-28+k=0

-12+k=0

K=12

Hope it helps you....