Question

If x+1÷×=5 find x^2 + 1÷x^2 factorise

Answer 1

then,
x+1=5x
4x=1
x=1/4.
now,
x^2+1/x^2
1/16+1/1/16
1/16+1/16=2/16=>1/8

Answer 2

X+1/x=5. (x+1/x)^2=5^2. x^2+1/x^2+2 = 25. x^2+1/x^2= 25-2. x^2+1/x^2= 23