Question

find the value of k if x=-1 is a zero of p 0(x)=3x^2+kx+2​

Answer 1

Answer:

Apply remainder theorem

=>x - 1 =0

=> x = 1

According to remainder theorem p(1) = 0 we get

Plug x = 1 we get

=> k(1)2 + 1+ 1 =0

=>k +1 + 1 =0

=> k + 2 = 0

=> k = - 2

Answer 2

Answer:

the value of k is 5

if x = -1