Question

if x+1/x=5 then find the value of 2x/3xsquare-5x+3 (square is only on x)

Answer 1

x+1/x=5.
x+1/x =5.
5x= x+1.
-1 = -4x.
Therefore, 4x=1.
Which implies, x=1/4.
Square of x=(1/4)²
=1-16.
U had said that, square is only for x, for the next part of the question.
2x/3x (square for x)-5x+3(square for x).
2/16 divided by 3/16 -5/16+3.
2/3 -5/16+3
=11/3-5/16
=2.729
(or), 2.73

Thank you.
Hope it will help you.