Question

if 3 is a root of the equation 7x²-(k+1)x+3=0 then value of k is​

Answer 1

Step-by-step explanation:

this is the answer

hope this helps you

Answer 2

Answer:

21

Step-by-step explanation:

P(3) = 7(3)^2-(k+1)3+3 = 0

7*9-3k-3+3=0

63-3k=0

63=3k

k=63/3

k=21