Question

If x=1 is a zero of the polynomial p(x)=x^3-2x^2+4x+k.find the value of k​

Answer 1

Answer:

see the attachment given in the answer

Answer 2

Answer:

We know x is 1

Therefore by substituting I in the equation we get

p(1)=1^3-2^2+4+k

=1-2+4+k

=-1+4+k

=3+k. (by equating it to zero)

We get

=3+k=0

k=0-3

k=-3