Question

if (x-3) is a factor of x³-2x²-9x+k then find the value of k​

Answer 1

Answer:

18

Step-by-step explanation:

finding zeros of equation (x-3)

=(x-3)=0

x= 3

now put x= 3 in equation x cube -2x^-9x+k

3cube-2*3^-9*3+k=0

27-18-27+k= 0

-18+k=0

k= 18......

hence value of k= 18

hopefully it will work ☺️☺️