Question

HELLO FRIENDS

Plzz solve this question

I WILL mark as brainlist
If answer is right!!!! ⚡

♥️❤️♥️❤️♥️❤️♥️❤️❤️
❎❎NØ SPAM ❎❎

​

Answer 1

HEY UR ANSWER IS IN THE ATTACHMENT

Answer 2

Answer:

198

Step-by-step explanation:

Given: x = 3 - √8

Then:

(1/x) = (1/3 - √8)

       = (1/3 - √8) * (3 + √8)/(3 + √8)

       = (3 + √8)/(3)² - (√8)²

       = (3 + √8)/9 - 8

       = 3 + √8

Now,

x + (1/x) = 3 - √8 + 3 + √8

            = 6

So, x + 1/x = 6

On cubing both sides, we get

⇒ (x + 1/x)³ = 6³

⇒ x³ + 1/x³ + 3(x + 1/x) = 216

⇒ x³ + 1/x³ + 3(6) = 216

⇒ x³ + 1/x³ = 198

Hope it helps!