Question

answer the question 18,19 and 20

please ........​

Answer 1

Answer:

Q.(19)

and :--

Step-by-step explanation:

(3x+2) is a factor of (x³+kx²-7x+k)

3x + 2 = 0

3x = -2

x = -2/3

So , x³+kx²-7x+k = 0

(-2/3)³ + k(-2/3)² - 7(-2/3) + k = 0

-8/27 + k(4/9) + 14/3 + k = 0

-8/27 + 14/3 + k + 4k/9 = 0

k + 4k/9 = 8/27 - 14/3

k = -118/39