Question

pls help me solve this problem ​

Answer 1

Answer:

Step-by-step explanation:

1/x=5+2√6

(x + 1/x)²=x²+1/x²+2

10²=x²+1/x²+2

x²+1/x²=98

Answer 2

Answer:

Step-by-step explanation: First let’s simplify what x is.

x = 5 - 2(6)to the power of a half.  (To the power of a half is how you can express that.)

so x = 5 - 2(3)

x = 5 - 6

x = -1

so that means that the sum we are going to do is:

-1² + 1/-1²

so -1² is 1 because a negative times a negative makes a positive.

so 1 + 1/-1²

so that can simplify to 1 + 1/1 as we found out that negative times a negative makes a positive.

1/1 is 1, so we have now simplified it to 1 + 1,

1 + 1 = 2

So your answer is 2.