Question

if X square + 1 upon x square equals to 27 find x minus one upon x​

Answer 1

=x^2+1/x^2=27

=x^2+1/x^2=25+2

=x^2+1/x^2-2=25

=(x-1/x)^2=25

=(x-1/x)=√25

=(x+1/x)=5

hope it helps you