Question

. If one of the roots of the quadratic equation x2 – 4x + k = 0 is 1, then its other root is:

Answer 1

Answer:

3

Step-by-step explanation:

put x=1

therefore k=3

product of the roots is 3

other root,=3/1=3

Answer 2

Answer:Given that,

x²-4x+k=0

One root is 1

α+β=-b/a

α+1=4

α=3

So another root is 3.

Step-by-step explanation:

Hope it helps...