Question

(x-1/x) = 7 , find x^2+1/x^2​

Answer 1

x-1/x = 7

x-1 = 7x

x = -1/6

x^2 + 1/x^2

-1/36 - 1/ 1/36

-1-72/36

-73/36

Answer 2

Answer:

37

Step-by-step explanation:

x-1/x=7

x-1=7x

6x=-1

x=-1/6

then

x^2+1/x^2

=(-1/6)^2+1/(-1/6)^2

=1/36+1÷1/36

=1+36/36÷1/36

=37/36÷1/36

=37