Question

if x +1/5=5 then x²+1/ײ​

Answer 1

Step-by-step explanation:

x+1/5=5

(5x+1)/5=5

5x+1=(5)5

5x=25-1

x=24/5

then

x²+1/x²=

((24/5)+1)/(24/5)

=1+24/5=29/5

(29/5)(5/24)=29/24

or

x+1/5=5

x+1=25

x=24

then

1+24²/24² (substituting to 1+x²/x²)

that is equal to 2

or

24²+1/24²=577/576

Answer 2

Hey mate,

$\huge\mathbf{{\fcolorbox{silver}{silver}{Hey mate, }}}$

$\huge\mathbf{{\fcolorbox{silver}{silver}{ Answer :}}}$

We need to find X2+ 1 / x2

( x + 1 / x )2 = 25

= x2 + 1 / x2 + 2 (x)(1)(1/x) =25

= x2 + 1/x2 + 2 = 25

= X2 + 1 / x2 = 25 – 2

= X2+ 1 / x2=23

$\huge\mathbf{{\fcolorbox{silver}{silver}{ Thank you }}}$