Question

$2x - \dfrac{1}{2x} = 4, Find : 4x² + \dfrac{1}{4x²}$

=> Solve it please and also tell which formula is used because I get from the formula $( a - \dfrac{1}{a} )²$​

Answer 1

Answer:

formula = (a-b)² as terms are subtraction

(2x-1/2x)²= (4)²

(2x)²+(1/2x)²- 2(½x*2x) =16

4x²+1/4x²= 16+2

or if you want simple then put in (a+b)² formula

whaat are you not able to understand.

Answer 2

Answer:

yes bhai

now which class you are studying bhai