Question

if the value of criterion of quadratic equations x³-3x-k=0 is 1 , then k =​

Answer 1

Answer:

3 is the answer okkkkkkkkkkkkkk

Answer 2

Answer:

Let

p(x)=x^3-3x-k=0

given zero is 1

so p(1)= 0

1^3-3×1-k=0

1-3-k=0

-2-k=0

k=2