Question

If am#bl then the system
2
If 3 is a root of the equation 7x²-(k+1)x +3=0 then value of k is....
OR​

Answer 1

Answer:

Step-by-step explanation:

pta ni

Answer 2

Answer:

k=21

Step-by-step explanation:

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

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

7(9)-3k-3+3=0

63-3k=0

-3k=-63

3k=63

k=63/3

k=21

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