Question

if x square plus1/x square = 51,findx-1/x

Answer 1

hey your ans is here

_______

given

x2+1/x2=51

to find

x-1/x

so apply

(x-1/x)2=x2+1/x2-2×x×1/x[this gets canceled]
so

(x-1/x)2=x2+1/x2-2
(x-1/x)2=51-2
x-1/x=√49
x-1/x=7

______

Answer 2

X2+1/x2=51

X-1/x=?

(x-1/x)2=x2+1/x2-2x1/x
= 51-2
= 49
Therefore , (x-1/x)2=49
x-1/x=root 49 = 7

Hope this helps... Plz mark as brainliest....!