Question

20) If 2x+3 is a
factor of 2x³ – 9x²+X+k
then
find value of K.​

Answer 1

Step-by-step explanation:

2x+3=0

so, x=-3/2

put -3/2 in 2x^3-9x^2+x+k=f(x)

-27/4-81/4-3/2+k=0

-114/4+k=0

k=114/4=57/2