Question

1
If x -1/x is
7 then the value of x2 +1/x2
is
​

Answer 1

Answer:

x- 1/x = 7 ; x^2 + 1/x^2 = ?

( x-1/x)^2= x2 + 1/x2 - 2 * x * 1/x

49 = x2 + 1/x2 - 2

49+2 = x2 + 1/x2

51= x2+1/x2

I hope this helps...

Give thanks and mark as brainliest if it helps you...