Question

x-1/2x=2 then 4x^4+1÷4x^2=?

Answer 1

x-1/2x=2
then (4x^4+1)/4x^2=?

use given by question
2x^2-1=4x
squaring both side

4x^4+1-4x^2=16x^2

4x^4+1=20x^2

(4x^4+1)=4x^2.(5)

(4x^4+1)/4x^2=5

hence answer is 5

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