Question

if x+1/x=8 find x²+1/x²​

Answer 1

Step-by-step explanation:

answer is x²+1x2 this is correct.

Answer 2

Answer:

Step-by-step explanation:

SQUARING ON BOTH SIDES =

              = $(x+1/2)^{2} =8^{2}$

USING FORMULA = $(a+b)^{2} = a^{2} +2ab + b^{2}$

              = $x^{2} +2(x) (1/x) + (1/4 )^{2} =64$

              = $x^{2} +2+1/x^{2} =64$

              = $x^{2} +1/x^{2} = 64-2= 62$

             ⇒ the correct answer is 62