Question

plz give me the answer fast.
$4 {a}^{2} + \frac{1}{4{a}^{2} } - 2 + 4a - \frac{1}{a}$
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Answer 1

Please see the image

Answer 2

Step-by-step explanation:

= 4a² +( 1/4a²) - 2 + 4a - (1/a)

= (2a)² + (1/2a)² - 2 (2a)(1/2a) + 4a - (1/a)

= (2a - 1/2a)² + (4a²-1) / a

= [(4a²-1 )/ 2a]² + (4a²-1) / a

= (4a²-1)² / 4a² + (4a²-1) / a

= (4a²-1) [ (4a²-1) / 4a² + 1/a ]

= (4a²-1) [(4a²-1 + 4a) / 4a² ]