Question

If k= (3 - x), find the value of
x3 + 9kx + K3 + 27.​

Answer 1

Answer:

0 is the answer.

Hope it's helpful.

Answer 2

Answer:

54

Step-by-step explanation:

substitute value of k

x³ + 9x × (3-x) + (3 - x)³ + 27

since

(a - b)³ = a³ - 3a²b + 3ab² - b³

x³ + 27x - 9x² + 27 - 27x + 9x² - x³ + 27

(x³ - x³) + (27x - 27x) + (9x² - 9x²) + (27 + 27)

after canceling , we are left with

27 + 27 , therefore

54 is the answer