Question

x=1/2-√3 find the value of x2-4x+9.....do it in a paper and send a pic ...if u do so I will mark as brainlisettt.and thank also .....plzz write the correct answer ..mate !!!​

Answer 1

Answer:

8is the correct answer

Answer 2

Answer:

(41 / 40) + (3√3)

Step-by-step explanation:

Would it be okay if I type lol?

x = 1/2 - √3

x² - 4x + 9 = ?

= (1/2 - √3)² - 4 × (1/2 - √3) + 9

= [ (1/2)² + (√3)² - 2(1/2)(√3) ] - [ 2 - 4√3] + 9

= 1/4 + 3 - √3 - 2 + 4√3 + 9

= 1/4 + 10 + 3√3

Taking LCM for the first two terms,

    1 + 10 × 4

=  --------------  + 3√3

          40

= 41

  ----- + 3√3

   40

Taking LCM,

     41 + 40 × 3√3

=  ----------------------

             40

      41+ 120√3

=  ------------------

           40

        41

= ------------  +   3√3

       40