Question

x2-1/x2=14 then x2+1/x2=?

Answer 1

Answer:

it's 14+2/x^2

hope it helps you thanks

Step-by-step explanation:

let a-b=14 a=14+b

and a+b=14+b+b=14+2b

2(7+b)= 2(7+1/x^2)

=14+2/x^2

Answer 2

Answer:

Step-by-step explanation:

(X²+1/x²)²=(x²-1/x²)²+4.x².1/x²

=(14)²+4

=200

X²+1/x²=√200=10√2