Question

plzz answer...
I need it​

Answer 1

Answer:

21 is correct ans

Step-by-step explanation:

(2x+1/x)^2=5^2

4x^2+1/x^2+2(2x)(1/x)=25

4x^2+1/x^2+4=25

. . . . . . . . =25-4

4x^2+1/x^2=21...

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Answer 2

Answer:

here is the answer...

Step-by-step explanation:

$\huge{\boxed{\blue{\mathcal{Answer}}}}$

2x + 1/x = 5...

Squaring.. both sides..

(2x)² +(1/x)² + 2*2x* 1/x= 5²

4x ² +1/x² +4 = 25

4x² + 1/x² = 25-4

ur answer is 21.

thank you

hope it helps ❤️❤️

plz mark it as brainliest