Question

find the value of k if (x=3) is a factor of x- kr -2​

Answer 1

Step-by-step explanation:

if x=3 is a factor of p(x)=x-kr-2

then p(x=3) should be equal to 0

so lets put x=3

3-kr-2=0

1-kr=0

$\huge \boxed{then \: \: \: \: k = \frac{1}{r} }$

if r is given then you can evaluate k